Home / 458,087,443.20-687,131,164.80-239,653,382.40

Finding the Fourth Proportional to 458,087,443.20, 687,131,164.80 and 239,653,382.40

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Solution

The fourth proportional to 458,087,443.20, 687,131,164.80 and 239,653,382.40 is: 359,480,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,087,443.20 : 687,131,164.80 = 239,653,382.40 : x
  2. Step 2: Convert to fraction form
    458,087,443.20/687,131,164.80 = 239,653,382.40/x
  3. Step 3: Cross multiply
    458,087,443.20x = 687,131,164.80 × 239,653,382.40
  4. Step 4: Simplify right side
    458,087,443.20x = 164,673,307,796,771,808
  5. Step 5: Solve for x
    x = 164,673,307,796,771,808/458,087,443.20
  6. Step 6: Final answer
    x = 359,480,073.60

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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.