Home / 15,428,005.20-21,292,817.49-9,549,526.23

Finding the Fourth Proportional to 15,428,005.20, 21,292,817.49 and 9,549,526.23

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Solution

The fourth proportional to 15,428,005.20, 21,292,817.49 and 9,549,526.23 is: 13,179,689.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428,005.20 : 21,292,817.49 = 9,549,526.23 : x
  2. Step 2: Convert to fraction form
    15,428,005.20/21,292,817.49 = 9,549,526.23/x
  3. Step 3: Cross multiply
    15,428,005.20x = 21,292,817.49 × 9,549,526.23
  4. Step 4: Simplify right side
    15,428,005.20x = 203,336,319,131,357.75
  5. Step 5: Solve for x
    x = 203,336,319,131,357.75/15,428,005.20
  6. Step 6: Final answer
    x = 13,179,689.56

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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.