Home / 82,716,618.80-124,074,928.20-55,435,980.80

Finding the Fourth Proportional to 82,716,618.80, 124,074,928.20 and 55,435,980.80

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Solution

The fourth proportional to 82,716,618.80, 124,074,928.20 and 55,435,980.80 is: 83,153,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,716,618.80 : 124,074,928.20 = 55,435,980.80 : x
  2. Step 2: Convert to fraction form
    82,716,618.80/124,074,928.20 = 55,435,980.80/x
  3. Step 3: Cross multiply
    82,716,618.80x = 124,074,928.20 × 55,435,980.80
  4. Step 4: Simplify right side
    82,716,618.80x = 6,878,215,337,456,578
  5. Step 5: Solve for x
    x = 6,878,215,337,456,578/82,716,618.80
  6. Step 6: Final answer
    x = 83,153,971.20

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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.