Home / 431,070,011.70-646,605,017.55-124,372,130.10

Finding the Fourth Proportional to 431,070,011.70, 646,605,017.55 and 124,372,130.10

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Solution

The fourth proportional to 431,070,011.70, 646,605,017.55 and 124,372,130.10 is: 186,558,195.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,070,011.70 : 646,605,017.55 = 124,372,130.10 : x
  2. Step 2: Convert to fraction form
    431,070,011.70/646,605,017.55 = 124,372,130.10/x
  3. Step 3: Cross multiply
    431,070,011.70x = 646,605,017.55 × 124,372,130.10
  4. Step 4: Simplify right side
    431,070,011.70x = 80,419,643,366,041,376
  5. Step 5: Solve for x
    x = 80,419,643,366,041,376/431,070,011.70
  6. Step 6: Final answer
    x = 186,558,195.15

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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.