Home / 808,765,142.40-1,213,147,713.60-441,433,123.20

Finding the Fourth Proportional to 808,765,142.40, 1,213,147,713.60 and 441,433,123.20

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Solution

The fourth proportional to 808,765,142.40, 1,213,147,713.60 and 441,433,123.20 is: 662,149,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,765,142.40 : 1,213,147,713.60 = 441,433,123.20 : x
  2. Step 2: Convert to fraction form
    808,765,142.40/1,213,147,713.60 = 441,433,123.20/x
  3. Step 3: Cross multiply
    808,765,142.40x = 1,213,147,713.60 × 441,433,123.20
  4. Step 4: Simplify right side
    808,765,142.40x = 535,523,584,117,387,072
  5. Step 5: Solve for x
    x = 535,523,584,117,387,072/808,765,142.40
  6. Step 6: Final answer
    x = 662,149,684.80

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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.