Home / 256,244,702.85-353,615,929.13-138,767,344.76

Finding the Fourth Proportional to 256,244,702.85, 353,615,929.13 and 138,767,344.76

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Solution

The fourth proportional to 256,244,702.85, 353,615,929.13 and 138,767,344.76 is: 191,497,982.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,244,702.85 : 353,615,929.13 = 138,767,344.76 : x
  2. Step 2: Convert to fraction form
    256,244,702.85/353,615,929.13 = 138,767,344.76/x
  3. Step 3: Cross multiply
    256,244,702.85x = 353,615,929.13 × 138,767,344.76
  4. Step 4: Simplify right side
    256,244,702.85x = 49,070,343,548,789,272
  5. Step 5: Solve for x
    x = 49,070,343,548,789,272/256,244,702.85
  6. Step 6: Final answer
    x = 191,497,982.21

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1.5x scale

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.