Home / 28,538,990.88-42,815,024.64-12,367,655.52

Finding the Fourth Proportional to 28,538,990.88, 42,815,024.64 and 12,367,655.52

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Solution

The fourth proportional to 28,538,990.88, 42,815,024.64 and 12,367,655.52 is: 18,554,316.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538,990.88 : 42,815,024.64 = 12,367,655.52 : x
  2. Step 2: Convert to fraction form
    28,538,990.88/42,815,024.64 = 12,367,655.52/x
  3. Step 3: Cross multiply
    28,538,990.88x = 42,815,024.64 × 12,367,655.52
  4. Step 4: Simplify right side
    28,538,990.88x = 529,521,475,827,832
  5. Step 5: Solve for x
    x = 529,521,475,827,832/28,538,990.88
  6. Step 6: Final answer
    x = 18,554,316.73

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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.