Home / 288,147,264.64-397,643,139.52-155,988,164.16

Finding the Fourth Proportional to 288,147,264.64, 397,643,139.52 and 155,988,164.16

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Solution

The fourth proportional to 288,147,264.64, 397,643,139.52 and 155,988,164.16 is: 215,263,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,147,264.64 : 397,643,139.52 = 155,988,164.16 : x
  2. Step 2: Convert to fraction form
    288,147,264.64/397,643,139.52 = 155,988,164.16/x
  3. Step 3: Cross multiply
    288,147,264.64x = 397,643,139.52 × 155,988,164.16
  4. Step 4: Simplify right side
    288,147,264.64x = 62,027,623,324,543,536
  5. Step 5: Solve for x
    x = 62,027,623,324,543,536/288,147,264.64
  6. Step 6: Final answer
    x = 215,263,620.16

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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.