Home / 79,461,158.80-119,191,738.20-68,690,621.20

Finding the Fourth Proportional to 79,461,158.80, 119,191,738.20 and 68,690,621.20

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Solution

The fourth proportional to 79,461,158.80, 119,191,738.20 and 68,690,621.20 is: 103,035,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,461,158.80 : 119,191,738.20 = 68,690,621.20 : x
  2. Step 2: Convert to fraction form
    79,461,158.80/119,191,738.20 = 68,690,621.20/x
  3. Step 3: Cross multiply
    79,461,158.80x = 119,191,738.20 × 68,690,621.20
  4. Step 4: Simplify right side
    79,461,158.80x = 8,187,354,538,865,770
  5. Step 5: Solve for x
    x = 8,187,354,538,865,770/79,461,158.80
  6. Step 6: Final answer
    x = 103,035,931.80

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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.