Home / 75,275,453.12-103,881,916.50-42,238,145.72

Finding the Fourth Proportional to 75,275,453.12, 103,881,916.50 and 42,238,145.72

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Solution

The fourth proportional to 75,275,453.12, 103,881,916.50 and 42,238,145.72 is: 58,289,646.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,275,453.12 : 103,881,916.50 = 42,238,145.72 : x
  2. Step 2: Convert to fraction form
    75,275,453.12/103,881,916.50 = 42,238,145.72/x
  3. Step 3: Cross multiply
    75,275,453.12x = 103,881,916.50 × 42,238,145.72
  4. Step 4: Simplify right side
    75,275,453.12x = 4,387,779,526,799,872.50
  5. Step 5: Solve for x
    x = 4,387,779,526,799,872.50/75,275,453.12
  6. Step 6: Final answer
    x = 58,289,646.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.