Home / 276,584,870.40-414,877,305.60-138,835,363.20

Finding the Fourth Proportional to 276,584,870.40, 414,877,305.60 and 138,835,363.20

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Solution

The fourth proportional to 276,584,870.40, 414,877,305.60 and 138,835,363.20 is: 208,253,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,584,870.40 : 414,877,305.60 = 138,835,363.20 : x
  2. Step 2: Convert to fraction form
    276,584,870.40/414,877,305.60 = 138,835,363.20/x
  3. Step 3: Cross multiply
    276,584,870.40x = 414,877,305.60 × 138,835,363.20
  4. Step 4: Simplify right side
    276,584,870.40x = 57,599,641,406,413,392
  5. Step 5: Solve for x
    x = 57,599,641,406,413,392/276,584,870.40
  6. Step 6: Final answer
    x = 208,253,044.80

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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.