Home / 289,066,660.16-398,912,373.92-156,907,570.88

Finding the Fourth Proportional to 289,066,660.16, 398,912,373.92 and 156,907,570.88

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Solution

The fourth proportional to 289,066,660.16, 398,912,373.92 and 156,907,570.88 is: 216,532,655.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,066,660.16 : 398,912,373.92 = 156,907,570.88 : x
  2. Step 2: Convert to fraction form
    289,066,660.16/398,912,373.92 = 156,907,570.88/x
  3. Step 3: Cross multiply
    289,066,660.16x = 398,912,373.92 × 156,907,570.88
  4. Step 4: Simplify right side
    289,066,660.16x = 62,592,371,585,761,464
  5. Step 5: Solve for x
    x = 62,592,371,585,761,464/289,066,660.16
  6. Step 6: Final answer
    x = 216,532,655.65

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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.