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Finding the Fourth Proportional to 284,339,278.80, 426,508,918.20 and 235,871,859.60

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Solution

The fourth proportional to 284,339,278.80, 426,508,918.20 and 235,871,859.60 is: 353,807,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,339,278.80 : 426,508,918.20 = 235,871,859.60 : x
  2. Step 2: Convert to fraction form
    284,339,278.80/426,508,918.20 = 235,871,859.60/x
  3. Step 3: Cross multiply
    284,339,278.80x = 426,508,918.20 × 235,871,859.60
  4. Step 4: Simplify right side
    284,339,278.80x = 100,601,451,671,818,272
  5. Step 5: Solve for x
    x = 100,601,451,671,818,272/284,339,278.80
  6. Step 6: Final answer
    x = 353,807,789.40

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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.