Home / 122,481,005.40-183,721,508.10-83,681,875.80

Finding the Fourth Proportional to 122,481,005.40, 183,721,508.10 and 83,681,875.80

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Solution

The fourth proportional to 122,481,005.40, 183,721,508.10 and 83,681,875.80 is: 125,522,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,481,005.40 : 183,721,508.10 = 83,681,875.80 : x
  2. Step 2: Convert to fraction form
    122,481,005.40/183,721,508.10 = 83,681,875.80/x
  3. Step 3: Cross multiply
    122,481,005.40x = 183,721,508.10 × 83,681,875.80
  4. Step 4: Simplify right side
    122,481,005.40x = 15,374,160,422,612,892
  5. Step 5: Solve for x
    x = 15,374,160,422,612,892/122,481,005.40
  6. Step 6: Final answer
    x = 125,522,813.70

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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.