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Finding the Fourth Proportional to 392,874,810.30, 589,074,843.33 and 156,560,680.71

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Solution

The fourth proportional to 392,874,810.30, 589,074,843.33 and 156,560,680.71 is: 234,746,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,874,810.30 : 589,074,843.33 = 156,560,680.71 : x
  2. Step 2: Convert to fraction form
    392,874,810.30/589,074,843.33 = 156,560,680.71/x
  3. Step 3: Cross multiply
    392,874,810.30x = 589,074,843.33 × 156,560,680.71
  4. Step 4: Simplify right side
    392,874,810.30x = 92,225,958,460,881,408
  5. Step 5: Solve for x
    x = 92,225,958,460,881,408/392,874,810.30
  6. Step 6: Final answer
    x = 234,746,428.23

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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.