Home / 19,681,215.40-29,521,823.10-11,071,871.20

Finding the Fourth Proportional to 19,681,215.40, 29,521,823.10 and 11,071,871.20

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Solution

The fourth proportional to 19,681,215.40, 29,521,823.10 and 11,071,871.20 is: 16,607,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681,215.40 : 29,521,823.10 = 11,071,871.20 : x
  2. Step 2: Convert to fraction form
    19,681,215.40/29,521,823.10 = 11,071,871.20/x
  3. Step 3: Cross multiply
    19,681,215.40x = 29,521,823.10 × 11,071,871.20
  4. Step 4: Simplify right side
    19,681,215.40x = 326,861,822,952,384.69
  5. Step 5: Solve for x
    x = 326,861,822,952,384.69/19,681,215.40
  6. Step 6: Final answer
    x = 16,607,806.80

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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.