Home / 120,013,572.64-165,619,524.72-65,009,428.48

Finding the Fourth Proportional to 120,013,572.64, 165,619,524.72 and 65,009,428.48

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Solution

The fourth proportional to 120,013,572.64, 165,619,524.72 and 65,009,428.48 is: 89,713,441.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,013,572.64 : 165,619,524.72 = 65,009,428.48 : x
  2. Step 2: Convert to fraction form
    120,013,572.64/165,619,524.72 = 65,009,428.48/x
  3. Step 3: Cross multiply
    120,013,572.64x = 165,619,524.72 × 65,009,428.48
  4. Step 4: Simplify right side
    120,013,572.64x = 10,766,830,647,176,432
  5. Step 5: Solve for x
    x = 10,766,830,647,176,432/120,013,572.64
  6. Step 6: Final answer
    x = 89,713,441.66

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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.