Home / 129,382,665.40-194,018,010.90-52,680,201.40

Finding the Fourth Proportional to 129,382,665.40, 194,018,010.90 and 52,680,201.40

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Solution

The fourth proportional to 129,382,665.40, 194,018,010.90 and 52,680,201.40 is: 78,997,506.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,382,665.40 : 194,018,010.90 = 52,680,201.40 : x
  2. Step 2: Convert to fraction form
    129,382,665.40/194,018,010.90 = 52,680,201.40/x
  3. Step 3: Cross multiply
    129,382,665.40x = 194,018,010.90 × 52,680,201.40
  4. Step 4: Simplify right side
    129,382,665.40x = 10,220,907,889,439,396
  5. Step 5: Solve for x
    x = 10,220,907,889,439,396/129,382,665.40
  6. Step 6: Final answer
    x = 78,997,506.02

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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.