Home / 287,226,853.20-430,840,279.80-79,964,863.20

Finding the Fourth Proportional to 287,226,853.20, 430,840,279.80 and 79,964,863.20

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Solution

The fourth proportional to 287,226,853.20, 430,840,279.80 and 79,964,863.20 is: 119,947,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,226,853.20 : 430,840,279.80 = 79,964,863.20 : x
  2. Step 2: Convert to fraction form
    287,226,853.20/430,840,279.80 = 79,964,863.20/x
  3. Step 3: Cross multiply
    287,226,853.20x = 430,840,279.80 × 79,964,863.20
  4. Step 4: Simplify right side
    287,226,853.20x = 34,452,084,035,256,724
  5. Step 5: Solve for x
    x = 34,452,084,035,256,724/287,226,853.20
  6. Step 6: Final answer
    x = 119,947,294.80

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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.