Home / 342,552,912.40-513,680,069.40-138,013,008.40

Finding the Fourth Proportional to 342,552,912.40, 513,680,069.40 and 138,013,008.40

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Solution

The fourth proportional to 342,552,912.40, 513,680,069.40 and 138,013,008.40 is: 206,959,360.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,552,912.40 : 513,680,069.40 = 138,013,008.40 : x
  2. Step 2: Convert to fraction form
    342,552,912.40/513,680,069.40 = 138,013,008.40/x
  3. Step 3: Cross multiply
    342,552,912.40x = 513,680,069.40 × 138,013,008.40
  4. Step 4: Simplify right side
    342,552,912.40x = 70,894,531,733,014,784
  5. Step 5: Solve for x
    x = 70,894,531,733,014,784/342,552,912.40
  6. Step 6: Final answer
    x = 206,959,360.63

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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.