Home / 616,516,077.60-849,969,143.01-489,777,277.05

Finding the Fourth Proportional to 616,516,077.60, 849,969,143.01 and 489,777,277.05

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Solution

The fourth proportional to 616,516,077.60, 849,969,143.01 and 489,777,277.05 is: 675,238,793.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,516,077.60 : 849,969,143.01 = 489,777,277.05 : x
  2. Step 2: Convert to fraction form
    616,516,077.60/849,969,143.01 = 489,777,277.05/x
  3. Step 3: Cross multiply
    616,516,077.60x = 849,969,143.01 × 489,777,277.05
  4. Step 4: Simplify right side
    616,516,077.60x = 416,295,572,439,959,872
  5. Step 5: Solve for x
    x = 416,295,572,439,959,872/616,516,077.60
  6. Step 6: Final answer
    x = 675,238,793.55

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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.