Home / 519,605,530.28-717,055,572.32-310,761,639.44

Finding the Fourth Proportional to 519,605,530.28, 717,055,572.32 and 310,761,639.44

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Solution

The fourth proportional to 519,605,530.28, 717,055,572.32 and 310,761,639.44 is: 428,851,026.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,605,530.28 : 717,055,572.32 = 310,761,639.44 : x
  2. Step 2: Convert to fraction form
    519,605,530.28/717,055,572.32 = 310,761,639.44/x
  3. Step 3: Cross multiply
    519,605,530.28x = 717,055,572.32 × 310,761,639.44
  4. Step 4: Simplify right side
    519,605,530.28x = 222,833,365,223,750,688
  5. Step 5: Solve for x
    x = 222,833,365,223,750,688/519,605,530.28
  6. Step 6: Final answer
    x = 428,851,026.86

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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.