Home / 620,868,882.68-856,799,908.26-338,612,005.46

Finding the Fourth Proportional to 620,868,882.68, 856,799,908.26 and 338,612,005.46

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Solution

The fourth proportional to 620,868,882.68, 856,799,908.26 and 338,612,005.46 is: 467,285,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,868,882.68 : 856,799,908.26 = 338,612,005.46 : x
  2. Step 2: Convert to fraction form
    620,868,882.68/856,799,908.26 = 338,612,005.46/x
  3. Step 3: Cross multiply
    620,868,882.68x = 856,799,908.26 × 338,612,005.46
  4. Step 4: Simplify right side
    620,868,882.68x = 290,122,735,213,862,592
  5. Step 5: Solve for x
    x = 290,122,735,213,862,592/620,868,882.68
  6. Step 6: Final answer
    x = 467,285,031.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.