Home / 420,749,170.47-580,622,717.30-235,111,711.59

Finding the Fourth Proportional to 420,749,170.47, 580,622,717.30 and 235,111,711.59

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Solution

The fourth proportional to 420,749,170.47, 580,622,717.30 and 235,111,711.59 is: 324,447,938.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,749,170.47 : 580,622,717.30 = 235,111,711.59 : x
  2. Step 2: Convert to fraction form
    420,749,170.47/580,622,717.30 = 235,111,711.59/x
  3. Step 3: Cross multiply
    420,749,170.47x = 580,622,717.30 × 235,111,711.59
  4. Step 4: Simplify right side
    420,749,170.47x = 136,511,200,851,264,144
  5. Step 5: Solve for x
    x = 136,511,200,851,264,144/420,749,170.47
  6. Step 6: Final answer
    x = 324,447,938.18

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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.