Home / 85,248,002.40-127,872,003.60-51,207,784.80

Finding the Fourth Proportional to 85,248,002.40, 127,872,003.60 and 51,207,784.80

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Solution

The fourth proportional to 85,248,002.40, 127,872,003.60 and 51,207,784.80 is: 76,811,677.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248,002.40 : 127,872,003.60 = 51,207,784.80 : x
  2. Step 2: Convert to fraction form
    85,248,002.40/127,872,003.60 = 51,207,784.80/x
  3. Step 3: Cross multiply
    85,248,002.40x = 127,872,003.60 × 51,207,784.80
  4. Step 4: Simplify right side
    85,248,002.40x = 6,548,042,042,293,625
  5. Step 5: Solve for x
    x = 6,548,042,042,293,625/85,248,002.40
  6. Step 6: Final answer
    x = 76,811,677.20

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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.