Home / 99,648,077.70-149,472,116.55-90,719,868.90

Finding the Fourth Proportional to 99,648,077.70, 149,472,116.55 and 90,719,868.90

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Solution

The fourth proportional to 99,648,077.70, 149,472,116.55 and 90,719,868.90 is: 136,079,803.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,648,077.70 : 149,472,116.55 = 90,719,868.90 : x
  2. Step 2: Convert to fraction form
    99,648,077.70/149,472,116.55 = 90,719,868.90/x
  3. Step 3: Cross multiply
    99,648,077.70x = 149,472,116.55 × 90,719,868.90
  4. Step 4: Simplify right side
    99,648,077.70x = 13,560,090,817,621,522
  5. Step 5: Solve for x
    x = 13,560,090,817,621,522/99,648,077.70
  6. Step 6: Final answer
    x = 136,079,803.35

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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.