Home / 256,185,324.76-353,535,915.03-138,710,734.64

Finding the Fourth Proportional to 256,185,324.76, 353,535,915.03 and 138,710,734.64

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Solution

The fourth proportional to 256,185,324.76, 353,535,915.03 and 138,710,734.64 is: 191,420,904.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,185,324.76 : 353,535,915.03 = 138,710,734.64 : x
  2. Step 2: Convert to fraction form
    256,185,324.76/353,535,915.03 = 138,710,734.64/x
  3. Step 3: Cross multiply
    256,185,324.76x = 353,535,915.03 × 138,710,734.64
  4. Step 4: Simplify right side
    256,185,324.76x = 49,039,226,495,435,912
  5. Step 5: Solve for x
    x = 49,039,226,495,435,912/256,185,324.76
  6. Step 6: Final answer
    x = 191,420,904.15

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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.