Home / 538,146,207.70-807,219,311.55-129,202,358.20

Finding the Fourth Proportional to 538,146,207.70, 807,219,311.55 and 129,202,358.20

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Solution

The fourth proportional to 538,146,207.70, 807,219,311.55 and 129,202,358.20 is: 193,803,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,146,207.70 : 807,219,311.55 = 129,202,358.20 : x
  2. Step 2: Convert to fraction form
    538,146,207.70/807,219,311.55 = 129,202,358.20/x
  3. Step 3: Cross multiply
    538,146,207.70x = 807,219,311.55 × 129,202,358.20
  4. Step 4: Simplify right side
    538,146,207.70x = 104,294,638,636,840,496
  5. Step 5: Solve for x
    x = 104,294,638,636,840,496/538,146,207.70
  6. Step 6: Final answer
    x = 193,803,537.30

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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.