Home / 288,584,808.65-398,236,366.56-156,422,967.52

Finding the Fourth Proportional to 288,584,808.65, 398,236,366.56 and 156,422,967.52

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Solution

The fourth proportional to 288,584,808.65, 398,236,366.56 and 156,422,967.52 is: 215,857,912.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,808.65 : 398,236,366.56 = 156,422,967.52 : x
  2. Step 2: Convert to fraction form
    288,584,808.65/398,236,366.56 = 156,422,967.52/x
  3. Step 3: Cross multiply
    288,584,808.65x = 398,236,366.56 × 156,422,967.52
  4. Step 4: Simplify right side
    288,584,808.65x = 62,293,314,231,697,696
  5. Step 5: Solve for x
    x = 62,293,314,231,697,696/288,584,808.65
  6. Step 6: Final answer
    x = 215,857,912.01

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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.