Home / 287,409,817.60-431,114,726.40-82,944,563.20

Finding the Fourth Proportional to 287,409,817.60, 431,114,726.40 and 82,944,563.20

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Solution

The fourth proportional to 287,409,817.60, 431,114,726.40 and 82,944,563.20 is: 124,416,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,409,817.60 : 431,114,726.40 = 82,944,563.20 : x
  2. Step 2: Convert to fraction form
    287,409,817.60/431,114,726.40 = 82,944,563.20/x
  3. Step 3: Cross multiply
    287,409,817.60x = 431,114,726.40 × 82,944,563.20
  4. Step 4: Simplify right side
    287,409,817.60x = 35,758,622,670,335,508
  5. Step 5: Solve for x
    x = 35,758,622,670,335,508/287,409,817.60
  6. Step 6: Final answer
    x = 124,416,844.80

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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.