Home / 131,067,868.80-196,727,774.40-66,444,643.20

Finding the Fourth Proportional to 131,067,868.80, 196,727,774.40 and 66,444,643.20

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Solution

The fourth proportional to 131,067,868.80, 196,727,774.40 and 66,444,643.20 is: 99,730,825.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,067,868.80 : 196,727,774.40 = 66,444,643.20 : x
  2. Step 2: Convert to fraction form
    131,067,868.80/196,727,774.40 = 66,444,643.20/x
  3. Step 3: Cross multiply
    131,067,868.80x = 196,727,774.40 × 66,444,643.20
  4. Step 4: Simplify right side
    131,067,868.80x = 13,071,506,777,538,096
  5. Step 5: Solve for x
    x = 13,071,506,777,538,096/131,067,868.80
  6. Step 6: Final answer
    x = 99,730,825.70

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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.