Home / 684,721,345.76-1,027,746,180.66-330,444,947.53

Finding the Fourth Proportional to 684,721,345.76, 1,027,746,180.66 and 330,444,947.53

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Solution

The fourth proportional to 684,721,345.76, 1,027,746,180.66 and 330,444,947.53 is: 495,987,944.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,721,345.76 : 1,027,746,180.66 = 330,444,947.53 : x
  2. Step 2: Convert to fraction form
    684,721,345.76/1,027,746,180.66 = 330,444,947.53/x
  3. Step 3: Cross multiply
    684,721,345.76x = 1,027,746,180.66 × 330,444,947.53
  4. Step 4: Simplify right side
    684,721,345.76x = 339,613,532,737,212,864
  5. Step 5: Solve for x
    x = 339,613,532,737,212,864/684,721,345.76
  6. Step 6: Final answer
    x = 495,987,944.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.