Home / 30,190,234.80-45,285,352.20-9,995,476.80

Finding the Fourth Proportional to 30,190,234.80, 45,285,352.20 and 9,995,476.80

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Solution

The fourth proportional to 30,190,234.80, 45,285,352.20 and 9,995,476.80 is: 14,993,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190,234.80 : 45,285,352.20 = 9,995,476.80 : x
  2. Step 2: Convert to fraction form
    30,190,234.80/45,285,352.20 = 9,995,476.80/x
  3. Step 3: Cross multiply
    30,190,234.80x = 45,285,352.20 × 9,995,476.80
  4. Step 4: Simplify right side
    30,190,234.80x = 452,648,687,294,929
  5. Step 5: Solve for x
    x = 452,648,687,294,929/30,190,234.80
  6. Step 6: Final answer
    x = 14,993,215.20

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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.