Home / 28,129,631.40-42,194,447.10-10,176,402.60

Finding the Fourth Proportional to 28,129,631.40, 42,194,447.10 and 10,176,402.60

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Solution

The fourth proportional to 28,129,631.40, 42,194,447.10 and 10,176,402.60 is: 15,264,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129,631.40 : 42,194,447.10 = 10,176,402.60 : x
  2. Step 2: Convert to fraction form
    28,129,631.40/42,194,447.10 = 10,176,402.60/x
  3. Step 3: Cross multiply
    28,129,631.40x = 42,194,447.10 × 10,176,402.60
  4. Step 4: Simplify right side
    28,129,631.40x = 429,387,681,174,002.44
  5. Step 5: Solve for x
    x = 429,387,681,174,002.44/28,129,631.40
  6. Step 6: Final answer
    x = 15,264,603.90

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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.