Home / 458,087,448.20-687,131,172.30-239,653,387.40

Finding the Fourth Proportional to 458,087,448.20, 687,131,172.30 and 239,653,387.40

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Solution

The fourth proportional to 458,087,448.20, 687,131,172.30 and 239,653,387.40 is: 359,480,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,087,448.20 : 687,131,172.30 = 239,653,387.40 : x
  2. Step 2: Convert to fraction form
    458,087,448.20/687,131,172.30 = 239,653,387.40/x
  3. Step 3: Cross multiply
    458,087,448.20x = 687,131,172.30 × 239,653,387.40
  4. Step 4: Simplify right side
    458,087,448.20x = 164,673,313,029,828,032
  5. Step 5: Solve for x
    x = 164,673,313,029,828,032/458,087,448.20
  6. Step 6: Final answer
    x = 359,480,081.10

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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.