Home / 129,382,669.40-194,018,016.90-52,680,205.40

Finding the Fourth Proportional to 129,382,669.40, 194,018,016.90 and 52,680,205.40

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Solution

The fourth proportional to 129,382,669.40, 194,018,016.90 and 52,680,205.40 is: 78,997,512.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,382,669.40 : 194,018,016.90 = 52,680,205.40 : x
  2. Step 2: Convert to fraction form
    129,382,669.40/194,018,016.90 = 52,680,205.40/x
  3. Step 3: Cross multiply
    129,382,669.40x = 194,018,016.90 × 52,680,205.40
  4. Step 4: Simplify right side
    129,382,669.40x = 10,220,908,981,592,672
  5. Step 5: Solve for x
    x = 10,220,908,981,592,672/129,382,669.40
  6. Step 6: Final answer
    x = 78,997,512.02

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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.