Home / 42,291,400.80-63,437,101.20-13,538,474.40

Finding the Fourth Proportional to 42,291,400.80, 63,437,101.20 and 13,538,474.40

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Solution

The fourth proportional to 42,291,400.80, 63,437,101.20 and 13,538,474.40 is: 20,307,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,291,400.80 : 63,437,101.20 = 13,538,474.40 : x
  2. Step 2: Convert to fraction form
    42,291,400.80/63,437,101.20 = 13,538,474.40/x
  3. Step 3: Cross multiply
    42,291,400.80x = 63,437,101.20 × 13,538,474.40
  4. Step 4: Simplify right side
    42,291,400.80x = 858,841,570,606,409.38
  5. Step 5: Solve for x
    x = 858,841,570,606,409.38/42,291,400.80
  6. Step 6: Final answer
    x = 20,307,711.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.