Home / 124,608,086.40-186,912,129.60-81,609,916.80

Finding the Fourth Proportional to 124,608,086.40, 186,912,129.60 and 81,609,916.80

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Solution

The fourth proportional to 124,608,086.40, 186,912,129.60 and 81,609,916.80 is: 122,414,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,608,086.40 : 186,912,129.60 = 81,609,916.80 : x
  2. Step 2: Convert to fraction form
    124,608,086.40/186,912,129.60 = 81,609,916.80/x
  3. Step 3: Cross multiply
    124,608,086.40x = 186,912,129.60 × 81,609,916.80
  4. Step 4: Simplify right side
    124,608,086.40x = 15,253,883,345,566,816
  5. Step 5: Solve for x
    x = 15,253,883,345,566,816/124,608,086.40
  6. Step 6: Final answer
    x = 122,414,875.20

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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.