Home / 90,872,006.40-136,308,009.60-54,592,300.80

Finding the Fourth Proportional to 90,872,006.40, 136,308,009.60 and 54,592,300.80

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Solution

The fourth proportional to 90,872,006.40, 136,308,009.60 and 54,592,300.80 is: 81,888,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,872,006.40 : 136,308,009.60 = 54,592,300.80 : x
  2. Step 2: Convert to fraction form
    90,872,006.40/136,308,009.60 = 54,592,300.80/x
  3. Step 3: Cross multiply
    90,872,006.40x = 136,308,009.60 × 54,592,300.80
  4. Step 4: Simplify right side
    90,872,006.40x = 7,441,367,861,532,487
  5. Step 5: Solve for x
    x = 7,441,367,861,532,487/90,872,006.40
  6. Step 6: Final answer
    x = 81,888,451.20

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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.