Home / 79,239,231.40-118,858,847.10-68,610,411.40

Finding the Fourth Proportional to 79,239,231.40, 118,858,847.10 and 68,610,411.40

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Solution

The fourth proportional to 79,239,231.40, 118,858,847.10 and 68,610,411.40 is: 102,915,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,239,231.40 : 118,858,847.10 = 68,610,411.40 : x
  2. Step 2: Convert to fraction form
    79,239,231.40/118,858,847.10 = 68,610,411.40/x
  3. Step 3: Cross multiply
    79,239,231.40x = 118,858,847.10 × 68,610,411.40
  4. Step 4: Simplify right side
    79,239,231.40x = 8,154,954,398,060,697
  5. Step 5: Solve for x
    x = 8,154,954,398,060,697/79,239,231.40
  6. Step 6: Final answer
    x = 102,915,617.10

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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.