Home / 78,667,660.80-118,001,491.20-48,056,659.20

Finding the Fourth Proportional to 78,667,660.80, 118,001,491.20 and 48,056,659.20

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Solution

The fourth proportional to 78,667,660.80, 118,001,491.20 and 48,056,659.20 is: 72,084,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,667,660.80 : 118,001,491.20 = 48,056,659.20 : x
  2. Step 2: Convert to fraction form
    78,667,660.80/118,001,491.20 = 48,056,659.20/x
  3. Step 3: Cross multiply
    78,667,660.80x = 118,001,491.20 × 48,056,659.20
  4. Step 4: Simplify right side
    78,667,660.80x = 5,670,757,447,690,200
  5. Step 5: Solve for x
    x = 5,670,757,447,690,200/78,667,660.80
  6. Step 6: Final answer
    x = 72,084,988.80

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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.