Home / 130,572,212.82-180,189,384.26-71,834,737.20

Finding the Fourth Proportional to 130,572,212.82, 180,189,384.26 and 71,834,737.20

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Solution

The fourth proportional to 130,572,212.82, 180,189,384.26 and 71,834,737.20 is: 99,131,789.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,572,212.82 : 180,189,384.26 = 71,834,737.20 : x
  2. Step 2: Convert to fraction form
    130,572,212.82/180,189,384.26 = 71,834,737.20/x
  3. Step 3: Cross multiply
    130,572,212.82x = 180,189,384.26 × 71,834,737.20
  4. Step 4: Simplify right side
    130,572,212.82x = 12,943,857,064,546,916
  5. Step 5: Solve for x
    x = 12,943,857,064,546,916/130,572,212.82
  6. Step 6: Final answer
    x = 99,131,789.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.