Home / 90,872,418.40-136,308,627.60-54,592,712.80

Finding the Fourth Proportional to 90,872,418.40, 136,308,627.60 and 54,592,712.80

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Solution

The fourth proportional to 90,872,418.40, 136,308,627.60 and 54,592,712.80 is: 81,889,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,872,418.40 : 136,308,627.60 = 54,592,712.80 : x
  2. Step 2: Convert to fraction form
    90,872,418.40/136,308,627.60 = 54,592,712.80/x
  3. Step 3: Cross multiply
    90,872,418.40x = 136,308,627.60 × 54,592,712.80
  4. Step 4: Simplify right side
    90,872,418.40x = 7,441,457,758,728,953
  5. Step 5: Solve for x
    x = 7,441,457,758,728,953/90,872,418.40
  6. Step 6: Final answer
    x = 81,889,069.20

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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.