Home / 78,736,624.40-118,045,887.60-40,425,633.20

Finding the Fourth Proportional to 78,736,624.40, 118,045,887.60 and 40,425,633.20

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Solution

The fourth proportional to 78,736,624.40, 118,045,887.60 and 40,425,633.20 is: 60,608,132.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,736,624.40 : 118,045,887.60 = 40,425,633.20 : x
  2. Step 2: Convert to fraction form
    78,736,624.40/118,045,887.60 = 40,425,633.20/x
  3. Step 3: Cross multiply
    78,736,624.40x = 118,045,887.60 × 40,425,633.20
  4. Step 4: Simplify right side
    78,736,624.40x = 4,772,079,752,886,028
  5. Step 5: Solve for x
    x = 4,772,079,752,886,028/78,736,624.40
  6. Step 6: Final answer
    x = 60,608,132.36

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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.