Home / 84,019,358.80-126,029,038.20-67,013,246.80

Finding the Fourth Proportional to 84,019,358.80, 126,029,038.20 and 67,013,246.80

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Solution

The fourth proportional to 84,019,358.80, 126,029,038.20 and 67,013,246.80 is: 100,519,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,019,358.80 : 126,029,038.20 = 67,013,246.80 : x
  2. Step 2: Convert to fraction form
    84,019,358.80/126,029,038.20 = 67,013,246.80/x
  3. Step 3: Cross multiply
    84,019,358.80x = 126,029,038.20 × 67,013,246.80
  4. Step 4: Simplify right side
    84,019,358.80x = 8,445,615,040,863,228
  5. Step 5: Solve for x
    x = 8,445,615,040,863,228/84,019,358.80
  6. Step 6: Final answer
    x = 100,519,870.20

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Similar ratio
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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.