Home / 90,908,080.43-136,362,122.24-21,820,883.93

Finding the Fourth Proportional to 90,908,080.43, 136,362,122.24 and 21,820,883.93

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Solution

The fourth proportional to 90,908,080.43, 136,362,122.24 and 21,820,883.93 is: 32,731,326.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,908,080.43 : 136,362,122.24 = 21,820,883.93 : x
  2. Step 2: Convert to fraction form
    90,908,080.43/136,362,122.24 = 21,820,883.93/x
  3. Step 3: Cross multiply
    90,908,080.43x = 136,362,122.24 × 21,820,883.93
  4. Step 4: Simplify right side
    90,908,080.43x = 2,975,542,041,690,806
  5. Step 5: Solve for x
    x = 2,975,542,041,690,806/90,908,080.43
  6. Step 6: Final answer
    x = 32,731,326.28

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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.