Home / 256,876,702.38-354,490,777.35-139,402,007.10

Finding the Fourth Proportional to 256,876,702.38, 354,490,777.35 and 139,402,007.10

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Solution

The fourth proportional to 256,876,702.38, 354,490,777.35 and 139,402,007.10 is: 192,375,273.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,876,702.38 : 354,490,777.35 = 139,402,007.10 : x
  2. Step 2: Convert to fraction form
    256,876,702.38/354,490,777.35 = 139,402,007.10/x
  3. Step 3: Cross multiply
    256,876,702.38x = 354,490,777.35 × 139,402,007.10
  4. Step 4: Simplify right side
    256,876,702.38x = 49,416,725,861,029,224
  5. Step 5: Solve for x
    x = 49,416,725,861,029,224/256,876,702.38
  6. Step 6: Final answer
    x = 192,375,273.44

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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.