Home / 154,480,648.80-231,870,272.40-77,890,159.20

Finding the Fourth Proportional to 154,480,648.80, 231,870,272.40 and 77,890,159.20

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Solution

The fourth proportional to 154,480,648.80, 231,870,272.40 and 77,890,159.20 is: 116,910,516.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,480,648.80 : 231,870,272.40 = 77,890,159.20 : x
  2. Step 2: Convert to fraction form
    154,480,648.80/231,870,272.40 = 77,890,159.20/x
  3. Step 3: Cross multiply
    154,480,648.80x = 231,870,272.40 × 77,890,159.20
  4. Step 4: Simplify right side
    154,480,648.80x = 18,060,412,430,983,368
  5. Step 5: Solve for x
    x = 18,060,412,430,983,368/154,480,648.80
  6. Step 6: Final answer
    x = 116,910,516.44

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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.