Home / 30,142,164.30-45,213,246.45-21,024,998.70

Finding the Fourth Proportional to 30,142,164.30, 45,213,246.45 and 21,024,998.70

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Solution

The fourth proportional to 30,142,164.30, 45,213,246.45 and 21,024,998.70 is: 31,537,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,142,164.30 : 45,213,246.45 = 21,024,998.70 : x
  2. Step 2: Convert to fraction form
    30,142,164.30/45,213,246.45 = 21,024,998.70/x
  3. Step 3: Cross multiply
    30,142,164.30x = 45,213,246.45 × 21,024,998.70
  4. Step 4: Simplify right side
    30,142,164.30x = 950,608,447,834,029.62
  5. Step 5: Solve for x
    x = 950,608,447,834,029.62/30,142,164.30
  6. Step 6: Final answer
    x = 31,537,498.05

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Double scale
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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.