Home / 30,718,459.73-42,391,618.94-16,780,008.17

Finding the Fourth Proportional to 30,718,459.73, 42,391,618.94 and 16,780,008.17

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Solution

The fourth proportional to 30,718,459.73, 42,391,618.94 and 16,780,008.17 is: 23,156,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718,459.73 : 42,391,618.94 = 16,780,008.17 : x
  2. Step 2: Convert to fraction form
    30,718,459.73/42,391,618.94 = 16,780,008.17/x
  3. Step 3: Cross multiply
    30,718,459.73x = 42,391,618.94 × 16,780,008.17
  4. Step 4: Simplify right side
    30,718,459.73x = 711,331,711,982,718.62
  5. Step 5: Solve for x
    x = 711,331,711,982,718.62/30,718,459.73
  6. Step 6: Final answer
    x = 23,156,490.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.