Home / 79,461,175.80-119,191,763.70-68,690,638.20

Finding the Fourth Proportional to 79,461,175.80, 119,191,763.70 and 68,690,638.20

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Solution

The fourth proportional to 79,461,175.80, 119,191,763.70 and 68,690,638.20 is: 103,035,957.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,461,175.80 : 119,191,763.70 = 68,690,638.20 : x
  2. Step 2: Convert to fraction form
    79,461,175.80/119,191,763.70 = 68,690,638.20/x
  3. Step 3: Cross multiply
    79,461,175.80x = 119,191,763.70 × 68,690,638.20
  4. Step 4: Simplify right side
    79,461,175.80x = 8,187,358,316,736,594
  5. Step 5: Solve for x
    x = 8,187,358,316,736,594/79,461,175.80
  6. Step 6: Final answer
    x = 103,035,957.30

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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.