Home / 28,342,072.64-42,519,854.88-9,172,829.76

Finding the Fourth Proportional to 28,342,072.64, 42,519,854.88 and 9,172,829.76

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Solution

The fourth proportional to 28,342,072.64, 42,519,854.88 and 9,172,829.76 is: 13,761,427.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342,072.64 : 42,519,854.88 = 9,172,829.76 : x
  2. Step 2: Convert to fraction form
    28,342,072.64/42,519,854.88 = 9,172,829.76/x
  3. Step 3: Cross multiply
    28,342,072.64x = 42,519,854.88 × 9,172,829.76
  4. Step 4: Simplify right side
    28,342,072.64x = 390,027,390,234,145.25
  5. Step 5: Solve for x
    x = 390,027,390,234,145.25/28,342,072.64
  6. Step 6: Final answer
    x = 13,761,427.94

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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.