Home / 82,715,330.40-124,072,995.60-69,801,314.10

Finding the Fourth Proportional to 82,715,330.40, 124,072,995.60 and 69,801,314.10

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Solution

The fourth proportional to 82,715,330.40, 124,072,995.60 and 69,801,314.10 is: 104,701,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,715,330.40 : 124,072,995.60 = 69,801,314.10 : x
  2. Step 2: Convert to fraction form
    82,715,330.40/124,072,995.60 = 69,801,314.10/x
  3. Step 3: Cross multiply
    82,715,330.40x = 124,072,995.60 × 69,801,314.10
  4. Step 4: Simplify right side
    82,715,330.40x = 8,660,458,137,203,517
  5. Step 5: Solve for x
    x = 8,660,458,137,203,517/82,715,330.40
  6. Step 6: Final answer
    x = 104,701,971.15

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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.