Home / 120,217,943.61-180,092,064.15-82,819,956.03

Finding the Fourth Proportional to 120,217,943.61, 180,092,064.15 and 82,819,956.03

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Solution

The fourth proportional to 120,217,943.61, 180,092,064.15 and 82,819,956.03 is: 124,068,141.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,217,943.61 : 180,092,064.15 = 82,819,956.03 : x
  2. Step 2: Convert to fraction form
    120,217,943.61/180,092,064.15 = 82,819,956.03/x
  3. Step 3: Cross multiply
    120,217,943.61x = 180,092,064.15 × 82,819,956.03
  4. Step 4: Simplify right side
    120,217,943.61x = 14,915,216,834,254,940
  5. Step 5: Solve for x
    x = 14,915,216,834,254,940/120,217,943.61
  6. Step 6: Final answer
    x = 124,068,141.46

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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.