Home / 90,796,803.20-136,195,204.80-85,488,387.20

Finding the Fourth Proportional to 90,796,803.20, 136,195,204.80 and 85,488,387.20

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Solution

The fourth proportional to 90,796,803.20, 136,195,204.80 and 85,488,387.20 is: 128,232,580.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,796,803.20 : 136,195,204.80 = 85,488,387.20 : x
  2. Step 2: Convert to fraction form
    90,796,803.20/136,195,204.80 = 85,488,387.20/x
  3. Step 3: Cross multiply
    90,796,803.20x = 136,195,204.80 × 85,488,387.20
  4. Step 4: Simplify right side
    90,796,803.20x = 11,643,108,402,725,700
  5. Step 5: Solve for x
    x = 11,643,108,402,725,700/90,796,803.20
  6. Step 6: Final answer
    x = 128,232,580.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.