Home / 457,541,713.80-686,403,899.80-239,290,311.24

Finding the Fourth Proportional to 457,541,713.80, 686,403,899.80 and 239,290,311.24

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Solution

The fourth proportional to 457,541,713.80, 686,403,899.80 and 239,290,311.24 is: 358,983,231.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,541,713.80 : 686,403,899.80 = 239,290,311.24 : x
  2. Step 2: Convert to fraction form
    457,541,713.80/686,403,899.80 = 239,290,311.24/x
  3. Step 3: Cross multiply
    457,541,713.80x = 686,403,899.80 × 239,290,311.24
  4. Step 4: Simplify right side
    457,541,713.80x = 164,249,802,819,491,776
  5. Step 5: Solve for x
    x = 164,249,802,819,491,776/457,541,713.80
  6. Step 6: Final answer
    x = 358,983,231.18

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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.