Home / 129,382,646.40-194,017,982.40-52,680,182.40

Finding the Fourth Proportional to 129,382,646.40, 194,017,982.40 and 52,680,182.40

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Solution

The fourth proportional to 129,382,646.40, 194,017,982.40 and 52,680,182.40 is: 78,997,477.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,382,646.40 : 194,017,982.40 = 52,680,182.40 : x
  2. Step 2: Convert to fraction form
    129,382,646.40/194,017,982.40 = 52,680,182.40/x
  3. Step 3: Cross multiply
    129,382,646.40x = 194,017,982.40 × 52,680,182.40
  4. Step 4: Simplify right side
    129,382,646.40x = 10,220,902,701,711,990
  5. Step 5: Solve for x
    x = 10,220,902,701,711,990/129,382,646.40
  6. Step 6: Final answer
    x = 78,997,477.53

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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.