Home / 497,016,016.20-745,524,024.30-420,488,512.20

Finding the Fourth Proportional to 497,016,016.20, 745,524,024.30 and 420,488,512.20

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Solution

The fourth proportional to 497,016,016.20, 745,524,024.30 and 420,488,512.20 is: 630,732,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,016,016.20 : 745,524,024.30 = 420,488,512.20 : x
  2. Step 2: Convert to fraction form
    497,016,016.20/745,524,024.30 = 420,488,512.20/x
  3. Step 3: Cross multiply
    497,016,016.20x = 745,524,024.30 × 420,488,512.20
  4. Step 4: Simplify right side
    497,016,016.20x = 313,484,287,787,263,616
  5. Step 5: Solve for x
    x = 313,484,287,787,263,616/497,016,016.20
  6. Step 6: Final answer
    x = 630,732,768.30

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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.