Home / 616,520,081.52-849,974,678.51-489,781,273.27

Finding the Fourth Proportional to 616,520,081.52, 849,974,678.51 and 489,781,273.27

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Solution

The fourth proportional to 616,520,081.52, 849,974,678.51 and 489,781,273.27 is: 675,244,315.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,520,081.52 : 849,974,678.51 = 489,781,273.27 : x
  2. Step 2: Convert to fraction form
    616,520,081.52/849,974,678.51 = 489,781,273.27/x
  3. Step 3: Cross multiply
    616,520,081.52x = 849,974,678.51 × 489,781,273.27
  4. Step 4: Simplify right side
    616,520,081.52x = 416,301,680,287,886,656
  5. Step 5: Solve for x
    x = 416,301,680,287,886,656/616,520,081.52
  6. Step 6: Final answer
    x = 675,244,315.26

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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.