Home / 287,334,065.80-431,001,098.70-271,461,694.60

Finding the Fourth Proportional to 287,334,065.80, 431,001,098.70 and 271,461,694.60

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Solution

The fourth proportional to 287,334,065.80, 431,001,098.70 and 271,461,694.60 is: 407,192,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,334,065.80 : 431,001,098.70 = 271,461,694.60 : x
  2. Step 2: Convert to fraction form
    287,334,065.80/431,001,098.70 = 271,461,694.60/x
  3. Step 3: Cross multiply
    287,334,065.80x = 431,001,098.70 × 271,461,694.60
  4. Step 4: Simplify right side
    287,334,065.80x = 117,000,288,627,563,872
  5. Step 5: Solve for x
    x = 117,000,288,627,563,872/287,334,065.80
  6. Step 6: Final answer
    x = 407,192,541.90

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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.