Home / 90,991,817.16-136,487,726.28-30,407,543.16

Finding the Fourth Proportional to 90,991,817.16, 136,487,726.28 and 30,407,543.16

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Solution

The fourth proportional to 90,991,817.16, 136,487,726.28 and 30,407,543.16 is: 45,611,314.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,991,817.16 : 136,487,726.28 = 30,407,543.16 : x
  2. Step 2: Convert to fraction form
    90,991,817.16/136,487,726.28 = 30,407,543.16/x
  3. Step 3: Cross multiply
    90,991,817.16x = 136,487,726.28 × 30,407,543.16
  4. Step 4: Simplify right side
    90,991,817.16x = 4,150,256,427,669,366.50
  5. Step 5: Solve for x
    x = 4,150,256,427,669,366.50/90,991,817.16
  6. Step 6: Final answer
    x = 45,611,314.92

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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.