Home / 288,584,776.80-398,236,322.79-156,422,935.76

Finding the Fourth Proportional to 288,584,776.80, 398,236,322.79 and 156,422,935.76

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Solution

The fourth proportional to 288,584,776.80, 398,236,322.79 and 156,422,935.76 is: 215,857,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,776.80 : 398,236,322.79 = 156,422,935.76 : x
  2. Step 2: Convert to fraction form
    288,584,776.80/398,236,322.79 = 156,422,935.76/x
  3. Step 3: Cross multiply
    288,584,776.80x = 398,236,322.79 × 156,422,935.76
  4. Step 4: Simplify right side
    288,584,776.80x = 62,293,294,735,087,616
  5. Step 5: Solve for x
    x = 62,293,294,735,087,616/288,584,776.80
  6. Step 6: Final answer
    x = 215,857,868.27

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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.