Home / 99,643,666.80-149,465,500.20-74,134,498.80

Finding the Fourth Proportional to 99,643,666.80, 149,465,500.20 and 74,134,498.80

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Solution

The fourth proportional to 99,643,666.80, 149,465,500.20 and 74,134,498.80 is: 111,201,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,643,666.80 : 149,465,500.20 = 74,134,498.80 : x
  2. Step 2: Convert to fraction form
    99,643,666.80/149,465,500.20 = 74,134,498.80/x
  3. Step 3: Cross multiply
    99,643,666.80x = 149,465,500.20 × 74,134,498.80
  4. Step 4: Simplify right side
    99,643,666.80x = 11,080,549,945,218,298
  5. Step 5: Solve for x
    x = 11,080,549,945,218,298/99,643,666.80
  6. Step 6: Final answer
    x = 111,201,748.20

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Double scale
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Similar ratio
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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.