Home / 78,887,863.40-118,275,807.90-35,777,719.40

Finding the Fourth Proportional to 78,887,863.40, 118,275,807.90 and 35,777,719.40

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Solution

The fourth proportional to 78,887,863.40, 118,275,807.90 and 35,777,719.40 is: 53,641,187.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,887,863.40 : 118,275,807.90 = 35,777,719.40 : x
  2. Step 2: Convert to fraction form
    78,887,863.40/118,275,807.90 = 35,777,719.40/x
  3. Step 3: Cross multiply
    78,887,863.40x = 118,275,807.90 × 35,777,719.40
  4. Step 4: Simplify right side
    78,887,863.40x = 4,231,638,666,854,503.50
  5. Step 5: Solve for x
    x = 4,231,638,666,854,503.50/78,887,863.40
  6. Step 6: Final answer
    x = 53,641,187.43

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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.