Home / 319,306,750.20-478,960,125.30-103,895,998.20

Finding the Fourth Proportional to 319,306,750.20, 478,960,125.30 and 103,895,998.20

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Solution

The fourth proportional to 319,306,750.20, 478,960,125.30 and 103,895,998.20 is: 155,843,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,306,750.20 : 478,960,125.30 = 103,895,998.20 : x
  2. Step 2: Convert to fraction form
    319,306,750.20/478,960,125.30 = 103,895,998.20/x
  3. Step 3: Cross multiply
    319,306,750.20x = 478,960,125.30 × 103,895,998.20
  4. Step 4: Simplify right side
    319,306,750.20x = 49,762,040,316,040,576
  5. Step 5: Solve for x
    x = 49,762,040,316,040,576/319,306,750.20
  6. Step 6: Final answer
    x = 155,843,997.30

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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.