Home / 420,489,484,956.48-630,734,234,721.56-102,133,538,513.88

Finding the Fourth Proportional to 420,489,484,956.48, 630,734,234,721.56 and 102,133,538,513.88

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Solution

The fourth proportional to 420,489,484,956.48, 630,734,234,721.56 and 102,133,538,513.88 is: 153,200,309,540.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,489,484,956.48 : 630,734,234,721.56 = 102,133,538,513.88 : x
  2. Step 2: Convert to fraction form
    420,489,484,956.48/630,734,234,721.56 = 102,133,538,513.88/x
  3. Step 3: Cross multiply
    420,489,484,956.48x = 630,734,234,721.56 × 102,133,538,513.88
  4. Step 4: Simplify right side
    420,489,484,956.48x = 64,419,119,253,957,088,641,024
  5. Step 5: Solve for x
    x = 64,419,119,253,957,088,641,024/420,489,484,956.48
  6. Step 6: Final answer
    x = 153,200,309,540.74

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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.