Home / 500,137,518.57-750,195,427.14-172,602,015.78

Finding the Fourth Proportional to 500,137,518.57, 750,195,427.14 and 172,602,015.78

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Solution

The fourth proportional to 500,137,518.57, 750,195,427.14 and 172,602,015.78 is: 258,899,279.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,137,518.57 : 750,195,427.14 = 172,602,015.78 : x
  2. Step 2: Convert to fraction form
    500,137,518.57/750,195,427.14 = 172,602,015.78/x
  3. Step 3: Cross multiply
    500,137,518.57x = 750,195,427.14 × 172,602,015.78
  4. Step 4: Simplify right side
    500,137,518.57x = 129,485,242,956,115,344
  5. Step 5: Solve for x
    x = 129,485,242,956,115,344/500,137,518.57
  6. Step 6: Final answer
    x = 258,899,279.00

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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.