Home / 129,345,076.80-194,017,615.20-61,320,628.80

Finding the Fourth Proportional to 129,345,076.80, 194,017,615.20 and 61,320,628.80

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Solution

The fourth proportional to 129,345,076.80, 194,017,615.20 and 61,320,628.80 is: 91,980,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,345,076.80 : 194,017,615.20 = 61,320,628.80 : x
  2. Step 2: Convert to fraction form
    129,345,076.80/194,017,615.20 = 61,320,628.80/x
  3. Step 3: Cross multiply
    129,345,076.80x = 194,017,615.20 × 61,320,628.80
  4. Step 4: Simplify right side
    129,345,076.80x = 11,897,282,162,340,436
  5. Step 5: Solve for x
    x = 11,897,282,162,340,436/129,345,076.80
  6. Step 6: Final answer
    x = 91,980,943.20

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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.