Home / 28,425,789.15-42,638,691.02-7,958,524.07

Finding the Fourth Proportional to 28,425,789.15, 42,638,691.02 and 7,958,524.07

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Solution

The fourth proportional to 28,425,789.15, 42,638,691.02 and 7,958,524.07 is: 11,937,788.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425,789.15 : 42,638,691.02 = 7,958,524.07 : x
  2. Step 2: Convert to fraction form
    28,425,789.15/42,638,691.02 = 7,958,524.07/x
  3. Step 3: Cross multiply
    28,425,789.15x = 42,638,691.02 × 7,958,524.07
  4. Step 4: Simplify right side
    28,425,789.15x = 339,341,048,542,976.81
  5. Step 5: Solve for x
    x = 339,341,048,542,976.81/28,425,789.15
  6. Step 6: Final answer
    x = 11,937,788.14

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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.