Home / 287,227,051.20-430,840,576.80-79,965,061.20

Finding the Fourth Proportional to 287,227,051.20, 430,840,576.80 and 79,965,061.20

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Solution

The fourth proportional to 287,227,051.20, 430,840,576.80 and 79,965,061.20 is: 119,947,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,227,051.20 : 430,840,576.80 = 79,965,061.20 : x
  2. Step 2: Convert to fraction form
    287,227,051.20/430,840,576.80 = 79,965,061.20/x
  3. Step 3: Cross multiply
    287,227,051.20x = 430,840,576.80 × 79,965,061.20
  4. Step 4: Simplify right side
    287,227,051.20x = 34,452,193,091,255,304
  5. Step 5: Solve for x
    x = 34,452,193,091,255,304/287,227,051.20
  6. Step 6: Final answer
    x = 119,947,591.80

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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.