Home / 85,178,448.60-127,767,672.90-39,744,835.80

Finding the Fourth Proportional to 85,178,448.60, 127,767,672.90 and 39,744,835.80

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Solution

The fourth proportional to 85,178,448.60, 127,767,672.90 and 39,744,835.80 is: 59,617,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,178,448.60 : 127,767,672.90 = 39,744,835.80 : x
  2. Step 2: Convert to fraction form
    85,178,448.60/127,767,672.90 = 39,744,835.80/x
  3. Step 3: Cross multiply
    85,178,448.60x = 127,767,672.90 × 39,744,835.80
  4. Step 4: Simplify right side
    85,178,448.60x = 5,078,105,179,958,610
  5. Step 5: Solve for x
    x = 5,078,105,179,958,610/85,178,448.60
  6. Step 6: Final answer
    x = 59,617,253.70

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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.