Home / 78,191,773.12-117,294,553.27-29,008,196.16

Finding the Fourth Proportional to 78,191,773.12, 117,294,553.27 and 29,008,196.16

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Solution

The fourth proportional to 78,191,773.12, 117,294,553.27 and 29,008,196.16 is: 43,514,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,191,773.12 : 117,294,553.27 = 29,008,196.16 : x
  2. Step 2: Convert to fraction form
    78,191,773.12/117,294,553.27 = 29,008,196.16/x
  3. Step 3: Cross multiply
    78,191,773.12x = 117,294,553.27 × 29,008,196.16
  4. Step 4: Simplify right side
    78,191,773.12x = 3,402,503,410,011,916.50
  5. Step 5: Solve for x
    x = 3,402,503,410,011,916.50/78,191,773.12
  6. Step 6: Final answer
    x = 43,514,851.68

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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.