Home / 38,521,947.60-53,158,862.52-20,880,471.60

Finding the Fourth Proportional to 38,521,947.60, 53,158,862.52 and 20,880,471.60

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Solution

The fourth proportional to 38,521,947.60, 53,158,862.52 and 20,880,471.60 is: 28,814,278.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,521,947.60 : 53,158,862.52 = 20,880,471.60 : x
  2. Step 2: Convert to fraction form
    38,521,947.60/53,158,862.52 = 20,880,471.60/x
  3. Step 3: Cross multiply
    38,521,947.60x = 53,158,862.52 × 20,880,471.60
  4. Step 4: Simplify right side
    38,521,947.60x = 1,109,982,119,137,164.62
  5. Step 5: Solve for x
    x = 1,109,982,119,137,164.62/38,521,947.60
  6. Step 6: Final answer
    x = 28,814,278.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.