Home / 265,890,381.20-366,989,947.56-155,917,523.60

Finding the Fourth Proportional to 265,890,381.20, 366,989,947.56 and 155,917,523.60

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Solution

The fourth proportional to 265,890,381.20, 366,989,947.56 and 155,917,523.60 is: 215,202,082.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,890,381.20 : 366,989,947.56 = 155,917,523.60 : x
  2. Step 2: Convert to fraction form
    265,890,381.20/366,989,947.56 = 155,917,523.60/x
  3. Step 3: Cross multiply
    265,890,381.20x = 366,989,947.56 × 155,917,523.60
  4. Step 4: Simplify right side
    265,890,381.20x = 57,220,163,809,649,064
  5. Step 5: Solve for x
    x = 57,220,163,809,649,064/265,890,381.20
  6. Step 6: Final answer
    x = 215,202,082.72

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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.