Home / 75,180,005.20-112,770,007.80-51,292,133.20

Finding the Fourth Proportional to 75,180,005.20, 112,770,007.80 and 51,292,133.20

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Solution

The fourth proportional to 75,180,005.20, 112,770,007.80 and 51,292,133.20 is: 76,938,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,180,005.20 : 112,770,007.80 = 51,292,133.20 : x
  2. Step 2: Convert to fraction form
    75,180,005.20/112,770,007.80 = 51,292,133.20/x
  3. Step 3: Cross multiply
    75,180,005.20x = 112,770,007.80 × 51,292,133.20
  4. Step 4: Simplify right side
    75,180,005.20x = 5,784,214,261,042,639
  5. Step 5: Solve for x
    x = 5,784,214,261,042,639/75,180,005.20
  6. Step 6: Final answer
    x = 76,938,199.80

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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.