Home / 20,117,612.25-30,180,916.31-7,338,116.50

Finding the Fourth Proportional to 20,117,612.25, 30,180,916.31 and 7,338,116.50

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Solution

The fourth proportional to 20,117,612.25, 30,180,916.31 and 7,338,116.50 is: 11,008,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117,612.25 : 30,180,916.31 = 7,338,116.50 : x
  2. Step 2: Convert to fraction form
    20,117,612.25/30,180,916.31 = 7,338,116.50/x
  3. Step 3: Cross multiply
    20,117,612.25x = 30,180,916.31 × 7,338,116.50
  4. Step 4: Simplify right side
    20,117,612.25x = 221,471,079,847,387.22
  5. Step 5: Solve for x
    x = 221,471,079,847,387.22/20,117,612.25
  6. Step 6: Final answer
    x = 11,008,815.41

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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.