Home / 129,986,052,140.80-194,979,078,211.20-74,197,501,724.80

Finding the Fourth Proportional to 129,986,052,140.80, 194,979,078,211.20 and 74,197,501,724.80

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Solution

The fourth proportional to 129,986,052,140.80, 194,979,078,211.20 and 74,197,501,724.80 is: 111,296,252,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,986,052,140.80 : 194,979,078,211.20 = 74,197,501,724.80 : x
  2. Step 2: Convert to fraction form
    129,986,052,140.80/194,979,078,211.20 = 74,197,501,724.80/x
  3. Step 3: Cross multiply
    129,986,052,140.80x = 194,979,078,211.20 × 74,197,501,724.80
  4. Step 4: Simplify right side
    129,986,052,140.80x = 14,466,960,491,875,426,893,824
  5. Step 5: Solve for x
    x = 14,466,960,491,875,426,893,824/129,986,052,140.80
  6. Step 6: Final answer
    x = 111,296,252,587.20

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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.