Home / 15,806,731.32-21,813,005.40-8,931,065.76

Finding the Fourth Proportional to 15,806,731.32, 21,813,005.40 and 8,931,065.76

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Solution

The fourth proportional to 15,806,731.32, 21,813,005.40 and 8,931,065.76 is: 12,324,710.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806,731.32 : 21,813,005.40 = 8,931,065.76 : x
  2. Step 2: Convert to fraction form
    15,806,731.32/21,813,005.40 = 8,931,065.76/x
  3. Step 3: Cross multiply
    15,806,731.32x = 21,813,005.40 × 8,931,065.76
  4. Step 4: Simplify right side
    15,806,731.32x = 194,813,385,650,635.09
  5. Step 5: Solve for x
    x = 194,813,385,650,635.09/15,806,731.32
  6. Step 6: Final answer
    x = 12,324,710.38

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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.