Home / 15,806,728.32-21,813,001.26-8,931,062.76

Finding the Fourth Proportional to 15,806,728.32, 21,813,001.26 and 8,931,062.76

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Solution

The fourth proportional to 15,806,728.32, 21,813,001.26 and 8,931,062.76 is: 12,324,706.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806,728.32 : 21,813,001.26 = 8,931,062.76 : x
  2. Step 2: Convert to fraction form
    15,806,728.32/21,813,001.26 = 8,931,062.76/x
  3. Step 3: Cross multiply
    15,806,728.32x = 21,813,001.26 × 8,931,062.76
  4. Step 4: Simplify right side
    15,806,728.32x = 194,813,283,237,019.09
  5. Step 5: Solve for x
    x = 194,813,283,237,019.09/15,806,728.32
  6. Step 6: Final answer
    x = 12,324,706.24

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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.