Home / 640,935,221.04-961,373,941.28-267,289,245.36

Finding the Fourth Proportional to 640,935,221.04, 961,373,941.28 and 267,289,245.36

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Solution

The fourth proportional to 640,935,221.04, 961,373,941.28 and 267,289,245.36 is: 400,921,819.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,935,221.04 : 961,373,941.28 = 267,289,245.36 : x
  2. Step 2: Convert to fraction form
    640,935,221.04/961,373,941.28 = 267,289,245.36/x
  3. Step 3: Cross multiply
    640,935,221.04x = 961,373,941.28 × 267,289,245.36
  4. Step 4: Simplify right side
    640,935,221.04x = 256,964,915,273,500,160
  5. Step 5: Solve for x
    x = 256,964,915,273,500,160/640,935,221.04
  6. Step 6: Final answer
    x = 400,921,819.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.