Home / 90,855,276.90-136,282,915.35-54,575,571.30

Finding the Fourth Proportional to 90,855,276.90, 136,282,915.35 and 54,575,571.30

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Solution

The fourth proportional to 90,855,276.90, 136,282,915.35 and 54,575,571.30 is: 81,863,356.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,855,276.90 : 136,282,915.35 = 54,575,571.30 : x
  2. Step 2: Convert to fraction form
    90,855,276.90/136,282,915.35 = 54,575,571.30/x
  3. Step 3: Cross multiply
    90,855,276.90x = 136,282,915.35 × 54,575,571.30
  4. Step 4: Simplify right side
    90,855,276.90x = 7,437,717,963,655,789
  5. Step 5: Solve for x
    x = 7,437,717,963,655,789/90,855,276.90
  6. Step 6: Final answer
    x = 81,863,356.95

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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.