Home / 120,221,174.43-165,905,539.94-65,217,030.93

Finding the Fourth Proportional to 120,221,174.43, 165,905,539.94 and 65,217,030.93

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Solution

The fourth proportional to 120,221,174.43, 165,905,539.94 and 65,217,030.93 is: 89,999,675.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,221,174.43 : 165,905,539.94 = 65,217,030.93 : x
  2. Step 2: Convert to fraction form
    120,221,174.43/165,905,539.94 = 65,217,030.93/x
  3. Step 3: Cross multiply
    120,221,174.43x = 165,905,539.94 × 65,217,030.93
  4. Step 4: Simplify right side
    120,221,174.43x = 10,819,866,729,888,372
  5. Step 5: Solve for x
    x = 10,819,866,729,888,372/120,221,174.43
  6. Step 6: Final answer
    x = 89,999,675.86

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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.