Home / 1,430,789,425.40-2,146,184,138.10-448,298,046.20

Finding the Fourth Proportional to 1,430,789,425.40, 2,146,184,138.10 and 448,298,046.20

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Solution

The fourth proportional to 1,430,789,425.40, 2,146,184,138.10 and 448,298,046.20 is: 672,447,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,789,425.40 : 2,146,184,138.10 = 448,298,046.20 : x
  2. Step 2: Convert to fraction form
    1,430,789,425.40/2,146,184,138.10 = 448,298,046.20/x
  3. Step 3: Cross multiply
    1,430,789,425.40x = 2,146,184,138.10 × 448,298,046.20
  4. Step 4: Simplify right side
    1,430,789,425.40x = 962,130,155,895,660,928
  5. Step 5: Solve for x
    x = 962,130,155,895,660,928/1,430,789,425.40
  6. Step 6: Final answer
    x = 672,447,069.30

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Half scale
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Double scale
Find fourth proportional to 1,430,789,426.40, 2,146,184,139.60 and 448,298,047.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.