Home / 85,016,136.60-127,335,248.10-73,678,728.60

Finding the Fourth Proportional to 85,016,136.60, 127,335,248.10 and 73,678,728.60

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Solution

The fourth proportional to 85,016,136.60, 127,335,248.10 and 73,678,728.60 is: 110,354,334.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,016,136.60 : 127,335,248.10 = 73,678,728.60 : x
  2. Step 2: Convert to fraction form
    85,016,136.60/127,335,248.10 = 73,678,728.60/x
  3. Step 3: Cross multiply
    85,016,136.60x = 127,335,248.10 × 73,678,728.60
  4. Step 4: Simplify right side
    85,016,136.60x = 9,381,899,185,973,564
  5. Step 5: Solve for x
    x = 9,381,899,185,973,564/85,016,136.60
  6. Step 6: Final answer
    x = 110,354,334.61

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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.