Home / 620,868,879.68-856,799,904.12-338,612,002.46

Finding the Fourth Proportional to 620,868,879.68, 856,799,904.12 and 338,612,002.46

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Solution

The fourth proportional to 620,868,879.68, 856,799,904.12 and 338,612,002.46 is: 467,285,027.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,868,879.68 : 856,799,904.12 = 338,612,002.46 : x
  2. Step 2: Convert to fraction form
    620,868,879.68/856,799,904.12 = 338,612,002.46/x
  3. Step 3: Cross multiply
    620,868,879.68x = 856,799,904.12 × 338,612,002.46
  4. Step 4: Simplify right side
    620,868,879.68x = 290,122,731,241,609,216
  5. Step 5: Solve for x
    x = 290,122,731,241,609,216/620,868,879.68
  6. Step 6: Final answer
    x = 467,285,027.06

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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.