Home / 129,379,939.20-194,069,908.80-118,798,358.40

Finding the Fourth Proportional to 129,379,939.20, 194,069,908.80 and 118,798,358.40

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Solution

The fourth proportional to 129,379,939.20, 194,069,908.80 and 118,798,358.40 is: 178,197,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,379,939.20 : 194,069,908.80 = 118,798,358.40 : x
  2. Step 2: Convert to fraction form
    129,379,939.20/194,069,908.80 = 118,798,358.40/x
  3. Step 3: Cross multiply
    129,379,939.20x = 194,069,908.80 × 118,798,358.40
  4. Step 4: Simplify right side
    129,379,939.20x = 23,055,186,580,277,716
  5. Step 5: Solve for x
    x = 23,055,186,580,277,716/129,379,939.20
  6. Step 6: Final answer
    x = 178,197,537.60

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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.