Home / 28,764,806.40-39,695,164.56-15,712,060.32

Finding the Fourth Proportional to 28,764,806.40, 39,695,164.56 and 15,712,060.32

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Solution

The fourth proportional to 28,764,806.40, 39,695,164.56 and 15,712,060.32 is: 21,682,496.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,764,806.40 : 39,695,164.56 = 15,712,060.32 : x
  2. Step 2: Convert to fraction form
    28,764,806.40/39,695,164.56 = 15,712,060.32/x
  3. Step 3: Cross multiply
    28,764,806.40x = 39,695,164.56 × 15,712,060.32
  4. Step 4: Simplify right side
    28,764,806.40x = 623,692,819,979,046.25
  5. Step 5: Solve for x
    x = 623,692,819,979,046.25/28,764,806.40
  6. Step 6: Final answer
    x = 21,682,496.70

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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.