Home / 1,520,423,175.81-2,098,183,982.45-825,062,151.81

Finding the Fourth Proportional to 1,520,423,175.81, 2,098,183,982.45 and 825,062,151.81

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Solution

The fourth proportional to 1,520,423,175.81, 2,098,183,982.45 and 825,062,151.81 is: 1,138,585,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,423,175.81 : 2,098,183,982.45 = 825,062,151.81 : x
  2. Step 2: Convert to fraction form
    1,520,423,175.81/2,098,183,982.45 = 825,062,151.81/x
  3. Step 3: Cross multiply
    1,520,423,175.81x = 2,098,183,982.45 × 825,062,151.81
  4. Step 4: Simplify right side
    1,520,423,175.81x = 1,731,132,191,449,346,816
  5. Step 5: Solve for x
    x = 1,731,132,191,449,346,816/1,520,423,175.81
  6. Step 6: Final answer
    x = 1,138,585,769.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.