Home / 231,292,130.48-319,193,152.44-138,454,680.32

Finding the Fourth Proportional to 231,292,130.48, 319,193,152.44 and 138,454,680.32

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Solution

The fourth proportional to 231,292,130.48, 319,193,152.44 and 138,454,680.32 is: 191,073,452.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,292,130.48 : 319,193,152.44 = 138,454,680.32 : x
  2. Step 2: Convert to fraction form
    231,292,130.48/319,193,152.44 = 138,454,680.32/x
  3. Step 3: Cross multiply
    231,292,130.48x = 319,193,152.44 × 138,454,680.32
  4. Step 4: Simplify right side
    231,292,130.48x = 44,193,785,881,413,224
  5. Step 5: Solve for x
    x = 44,193,785,881,413,224/231,292,130.48
  6. Step 6: Final answer
    x = 191,073,452.39

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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.