Home / 82,679,407.20-124,019,110.80-64,743,842.40

Finding the Fourth Proportional to 82,679,407.20, 124,019,110.80 and 64,743,842.40

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Solution

The fourth proportional to 82,679,407.20, 124,019,110.80 and 64,743,842.40 is: 97,115,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,679,407.20 : 124,019,110.80 = 64,743,842.40 : x
  2. Step 2: Convert to fraction form
    82,679,407.20/124,019,110.80 = 64,743,842.40/x
  3. Step 3: Cross multiply
    82,679,407.20x = 124,019,110.80 × 64,743,842.40
  4. Step 4: Simplify right side
    82,679,407.20x = 8,029,473,764,223,338
  5. Step 5: Solve for x
    x = 8,029,473,764,223,338/82,679,407.20
  6. Step 6: Final answer
    x = 97,115,763.60

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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.