Home / 90,795,881.60-136,193,822.40-82,435,126.40

Finding the Fourth Proportional to 90,795,881.60, 136,193,822.40 and 82,435,126.40

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Solution

The fourth proportional to 90,795,881.60, 136,193,822.40 and 82,435,126.40 is: 123,652,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,795,881.60 : 136,193,822.40 = 82,435,126.40 : x
  2. Step 2: Convert to fraction form
    90,795,881.60/136,193,822.40 = 82,435,126.40/x
  3. Step 3: Cross multiply
    90,795,881.60x = 136,193,822.40 × 82,435,126.40
  4. Step 4: Simplify right side
    90,795,881.60x = 11,227,154,964,443,152
  5. Step 5: Solve for x
    x = 11,227,154,964,443,152/90,795,881.60
  6. Step 6: Final answer
    x = 123,652,689.60

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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.