Home / 120,285,531.46-165,994,102.47-65,281,387.96

Finding the Fourth Proportional to 120,285,531.46, 165,994,102.47 and 65,281,387.96

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Solution

The fourth proportional to 120,285,531.46, 165,994,102.47 and 65,281,387.96 is: 90,088,352.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,285,531.46 : 165,994,102.47 = 65,281,387.96 : x
  2. Step 2: Convert to fraction form
    120,285,531.46/165,994,102.47 = 65,281,387.96/x
  3. Step 3: Cross multiply
    120,285,531.46x = 165,994,102.47 × 65,281,387.96
  4. Step 4: Simplify right side
    120,285,531.46x = 10,836,325,402,868,362
  5. Step 5: Solve for x
    x = 10,836,325,402,868,362/120,285,531.46
  6. Step 6: Final answer
    x = 90,088,352.87

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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.