Home / 79,291,332,346.05-118,936,998,519.08-72,679,356,000.45

Finding the Fourth Proportional to 79,291,332,346.05, 118,936,998,519.08 and 72,679,356,000.45

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Solution

The fourth proportional to 79,291,332,346.05, 118,936,998,519.08 and 72,679,356,000.45 is: 109,019,034,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,291,332,346.05 : 118,936,998,519.08 = 72,679,356,000.45 : x
  2. Step 2: Convert to fraction form
    79,291,332,346.05/118,936,998,519.08 = 72,679,356,000.45/x
  3. Step 3: Cross multiply
    79,291,332,346.05x = 118,936,998,519.08 × 72,679,356,000.45
  4. Step 4: Simplify right side
    79,291,332,346.05x = 8,644,264,456,993,209,581,568
  5. Step 5: Solve for x
    x = 8,644,264,456,993,209,581,568/79,291,332,346.05
  6. Step 6: Final answer
    x = 109,019,034,000.68

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1.5x scale

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.