Home / 82,584,439.40-123,876,221.70-21,173,479.40

Finding the Fourth Proportional to 82,584,439.40, 123,876,221.70 and 21,173,479.40

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Solution

The fourth proportional to 82,584,439.40, 123,876,221.70 and 21,173,479.40 is: 31,760,106.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,584,439.40 : 123,876,221.70 = 21,173,479.40 : x
  2. Step 2: Convert to fraction form
    82,584,439.40/123,876,221.70 = 21,173,479.40/x
  3. Step 3: Cross multiply
    82,584,439.40x = 123,876,221.70 × 21,173,479.40
  4. Step 4: Simplify right side
    82,584,439.40x = 2,622,890,628,314,783
  5. Step 5: Solve for x
    x = 2,622,890,628,314,783/82,584,439.40
  6. Step 6: Final answer
    x = 31,760,106.96

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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.