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Finding the Fourth Proportional to 269,692,852.80, 404,539,279.20 and 240,971,419.20

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Solution

The fourth proportional to 269,692,852.80, 404,539,279.20 and 240,971,419.20 is: 361,457,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,692,852.80 : 404,539,279.20 = 240,971,419.20 : x
  2. Step 2: Convert to fraction form
    269,692,852.80/404,539,279.20 = 240,971,419.20/x
  3. Step 3: Cross multiply
    269,692,852.80x = 404,539,279.20 × 240,971,419.20
  4. Step 4: Simplify right side
    269,692,852.80x = 97,482,404,230,969,040
  5. Step 5: Solve for x
    x = 97,482,404,230,969,040/269,692,852.80
  6. Step 6: Final answer
    x = 361,457,128.80

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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.