Home / 20,539,160.93-28,344,718.60-11,247,123.16

Finding the Fourth Proportional to 20,539,160.93, 28,344,718.60 and 11,247,123.16

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Solution

The fourth proportional to 20,539,160.93, 28,344,718.60 and 11,247,123.16 is: 15,521,400.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,160.93 : 28,344,718.60 = 11,247,123.16 : x
  2. Step 2: Convert to fraction form
    20,539,160.93/28,344,718.60 = 11,247,123.16/x
  3. Step 3: Cross multiply
    20,539,160.93x = 28,344,718.60 × 11,247,123.16
  4. Step 4: Simplify right side
    20,539,160.93x = 318,796,541,037,055.88
  5. Step 5: Solve for x
    x = 318,796,541,037,055.88/20,539,160.93
  6. Step 6: Final answer
    x = 15,521,400.42

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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.