Home / 78,725,115.10-118,087,672.65-44,287,738.30

Finding the Fourth Proportional to 78,725,115.10, 118,087,672.65 and 44,287,738.30

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Solution

The fourth proportional to 78,725,115.10, 118,087,672.65 and 44,287,738.30 is: 66,431,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,725,115.10 : 118,087,672.65 = 44,287,738.30 : x
  2. Step 2: Convert to fraction form
    78,725,115.10/118,087,672.65 = 44,287,738.30/x
  3. Step 3: Cross multiply
    78,725,115.10x = 118,087,672.65 × 44,287,738.30
  4. Step 4: Simplify right side
    78,725,115.10x = 5,229,835,942,779,267
  5. Step 5: Solve for x
    x = 5,229,835,942,779,267/78,725,115.10
  6. Step 6: Final answer
    x = 66,431,607.45

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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.