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Finding the Fourth Proportional to 275,593,380.40, 413,390,070.60 and 266,240,018.80

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Solution

The fourth proportional to 275,593,380.40, 413,390,070.60 and 266,240,018.80 is: 399,360,028.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,593,380.40 : 413,390,070.60 = 266,240,018.80 : x
  2. Step 2: Convert to fraction form
    275,593,380.40/413,390,070.60 = 266,240,018.80/x
  3. Step 3: Cross multiply
    275,593,380.40x = 413,390,070.60 × 266,240,018.80
  4. Step 4: Simplify right side
    275,593,380.40x = 110,060,980,168,277,344
  5. Step 5: Solve for x
    x = 110,060,980,168,277,344/275,593,380.40
  6. Step 6: Final answer
    x = 399,360,028.20

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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.