Home / 78,887,862.90-118,275,807.15-35,777,718.90

Finding the Fourth Proportional to 78,887,862.90, 118,275,807.15 and 35,777,718.90

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Solution

The fourth proportional to 78,887,862.90, 118,275,807.15 and 35,777,718.90 is: 53,641,186.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,887,862.90 : 118,275,807.15 = 35,777,718.90 : x
  2. Step 2: Convert to fraction form
    78,887,862.90/118,275,807.15 = 35,777,718.90/x
  3. Step 3: Cross multiply
    78,887,862.90x = 118,275,807.15 × 35,777,718.90
  4. Step 4: Simplify right side
    78,887,862.90x = 4,231,638,580,883,310
  5. Step 5: Solve for x
    x = 4,231,638,580,883,310/78,887,862.90
  6. Step 6: Final answer
    x = 53,641,186.68

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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.