Home / 81,566,439.80-122,349,659.70-49,317,812.60

Finding the Fourth Proportional to 81,566,439.80, 122,349,659.70 and 49,317,812.60

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Solution

The fourth proportional to 81,566,439.80, 122,349,659.70 and 49,317,812.60 is: 73,976,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,566,439.80 : 122,349,659.70 = 49,317,812.60 : x
  2. Step 2: Convert to fraction form
    81,566,439.80/122,349,659.70 = 49,317,812.60/x
  3. Step 3: Cross multiply
    81,566,439.80x = 122,349,659.70 × 49,317,812.60
  4. Step 4: Simplify right side
    81,566,439.80x = 6,034,017,588,758,373
  5. Step 5: Solve for x
    x = 6,034,017,588,758,373/81,566,439.80
  6. Step 6: Final answer
    x = 73,976,718.90

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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.