Home / 138,785,050.20-208,028,276.10-52,490,112.60

Finding the Fourth Proportional to 138,785,050.20, 208,028,276.10 and 52,490,112.60

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Solution

The fourth proportional to 138,785,050.20, 208,028,276.10 and 52,490,112.60 is: 78,678,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,785,050.20 : 208,028,276.10 = 52,490,112.60 : x
  2. Step 2: Convert to fraction form
    138,785,050.20/208,028,276.10 = 52,490,112.60/x
  3. Step 3: Cross multiply
    138,785,050.20x = 208,028,276.10 × 52,490,112.60
  4. Step 4: Simplify right side
    138,785,050.20x = 10,919,427,636,472,888
  5. Step 5: Solve for x
    x = 10,919,427,636,472,888/138,785,050.20
  6. Step 6: Final answer
    x = 78,678,702.21

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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.