Home / 90,977,894.18-136,327,976.78-54,017,000.72

Finding the Fourth Proportional to 90,977,894.18, 136,327,976.78 and 54,017,000.72

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Solution

The fourth proportional to 90,977,894.18, 136,327,976.78 and 54,017,000.72 is: 80,943,052.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,977,894.18 : 136,327,976.78 = 54,017,000.72 : x
  2. Step 2: Convert to fraction form
    90,977,894.18/136,327,976.78 = 54,017,000.72/x
  3. Step 3: Cross multiply
    90,977,894.18x = 136,327,976.78 × 54,017,000.72
  4. Step 4: Simplify right side
    90,977,894.18x = 7,364,028,418,929,679
  5. Step 5: Solve for x
    x = 7,364,028,418,929,679/90,977,894.18
  6. Step 6: Final answer
    x = 80,943,052.00

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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.