Home / 99,853,310.40-149,779,965.60-83,728,996.80

Finding the Fourth Proportional to 99,853,310.40, 149,779,965.60 and 83,728,996.80

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Solution

The fourth proportional to 99,853,310.40, 149,779,965.60 and 83,728,996.80 is: 125,593,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,853,310.40 : 149,779,965.60 = 83,728,996.80 : x
  2. Step 2: Convert to fraction form
    99,853,310.40/149,779,965.60 = 83,728,996.80/x
  3. Step 3: Cross multiply
    99,853,310.40x = 149,779,965.60 × 83,728,996.80
  4. Step 4: Simplify right side
    99,853,310.40x = 12,540,926,260,426,510
  5. Step 5: Solve for x
    x = 12,540,926,260,426,510/99,853,310.40
  6. Step 6: Final answer
    x = 125,593,495.20

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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.