Home / 1,292,912,343.30-1,939,368,540.60-310,338,882.57

Finding the Fourth Proportional to 1,292,912,343.30, 1,939,368,540.60 and 310,338,882.57

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Solution

The fourth proportional to 1,292,912,343.30, 1,939,368,540.60 and 310,338,882.57 is: 465,508,330.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,912,343.30 : 1,939,368,540.60 = 310,338,882.57 : x
  2. Step 2: Convert to fraction form
    1,292,912,343.30/1,939,368,540.60 = 310,338,882.57/x
  3. Step 3: Cross multiply
    1,292,912,343.30x = 1,939,368,540.60 × 310,338,882.57
  4. Step 4: Simplify right side
    1,292,912,343.30x = 601,861,465,781,215,616
  5. Step 5: Solve for x
    x = 601,861,465,781,215,616/1,292,912,343.30
  6. Step 6: Final answer
    x = 465,508,330.01

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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.