Home / 84,340,870.40-126,427,324.80-38,823,276.80

Finding the Fourth Proportional to 84,340,870.40, 126,427,324.80 and 38,823,276.80

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Solution

The fourth proportional to 84,340,870.40, 126,427,324.80 and 38,823,276.80 is: 58,196,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,340,870.40 : 126,427,324.80 = 38,823,276.80 : x
  2. Step 2: Convert to fraction form
    84,340,870.40/126,427,324.80 = 38,823,276.80/x
  3. Step 3: Cross multiply
    84,340,870.40x = 126,427,324.80 × 38,823,276.80
  4. Step 4: Simplify right side
    84,340,870.40x = 4,908,323,025,793,904
  5. Step 5: Solve for x
    x = 4,908,323,025,793,904/84,340,870.40
  6. Step 6: Final answer
    x = 58,196,257.67

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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.