Home / 312,044,672.40-468,122,995.80-130,310,221.20

Finding the Fourth Proportional to 312,044,672.40, 468,122,995.80 and 130,310,221.20

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Solution

The fourth proportional to 312,044,672.40, 468,122,995.80 and 130,310,221.20 is: 195,488,712.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,044,672.40 : 468,122,995.80 = 130,310,221.20 : x
  2. Step 2: Convert to fraction form
    312,044,672.40/468,122,995.80 = 130,310,221.20/x
  3. Step 3: Cross multiply
    312,044,672.40x = 468,122,995.80 × 130,310,221.20
  4. Step 4: Simplify right side
    312,044,672.40x = 61,001,211,131,504,672
  5. Step 5: Solve for x
    x = 61,001,211,131,504,672/312,044,672.40
  6. Step 6: Final answer
    x = 195,488,712.12

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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.