Home / 85,187,000.40-127,780,500.60-54,575,998.80

Finding the Fourth Proportional to 85,187,000.40, 127,780,500.60 and 54,575,998.80

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Solution

The fourth proportional to 85,187,000.40, 127,780,500.60 and 54,575,998.80 is: 81,863,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,187,000.40 : 127,780,500.60 = 54,575,998.80 : x
  2. Step 2: Convert to fraction form
    85,187,000.40/127,780,500.60 = 54,575,998.80/x
  3. Step 3: Cross multiply
    85,187,000.40x = 127,780,500.60 × 54,575,998.80
  4. Step 4: Simplify right side
    85,187,000.40x = 6,973,748,447,408,999
  5. Step 5: Solve for x
    x = 6,973,748,447,408,999/85,187,000.40
  6. Step 6: Final answer
    x = 81,863,998.20

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Similar ratio
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1.5x scale

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.