Home / 198,976,161.15-274,587,671.12-115,360,541.55

Finding the Fourth Proportional to 198,976,161.15, 274,587,671.12 and 115,360,541.55

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Solution

The fourth proportional to 198,976,161.15, 274,587,671.12 and 115,360,541.55 is: 159,197,877.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,976,161.15 : 274,587,671.12 = 115,360,541.55 : x
  2. Step 2: Convert to fraction form
    198,976,161.15/274,587,671.12 = 115,360,541.55/x
  3. Step 3: Cross multiply
    198,976,161.15x = 274,587,671.12 × 115,360,541.55
  4. Step 4: Simplify right side
    198,976,161.15x = 31,676,582,442,779,692
  5. Step 5: Solve for x
    x = 31,676,582,442,779,692/198,976,161.15
  6. Step 6: Final answer
    x = 159,197,877.07

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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.