Home / 28,342,057.95-42,519,832.61-9,172,815.03

Finding the Fourth Proportional to 28,342,057.95, 42,519,832.61 and 9,172,815.03

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Solution

The fourth proportional to 28,342,057.95, 42,519,832.61 and 9,172,815.03 is: 13,761,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342,057.95 : 42,519,832.61 = 9,172,815.03 : x
  2. Step 2: Convert to fraction form
    28,342,057.95/42,519,832.61 = 9,172,815.03/x
  3. Step 3: Cross multiply
    28,342,057.95x = 42,519,832.61 × 9,172,815.03
  4. Step 4: Simplify right side
    28,342,057.95x = 390,026,559,592,228
  5. Step 5: Solve for x
    x = 390,026,559,592,228/28,342,057.95
  6. Step 6: Final answer
    x = 13,761,405.76

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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.