Home / 256,248,000.80-384,372,001.20-253,859,213.60

Finding the Fourth Proportional to 256,248,000.80, 384,372,001.20 and 253,859,213.60

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Solution

The fourth proportional to 256,248,000.80, 384,372,001.20 and 253,859,213.60 is: 380,788,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,248,000.80 : 384,372,001.20 = 253,859,213.60 : x
  2. Step 2: Convert to fraction form
    256,248,000.80/384,372,001.20 = 253,859,213.60/x
  3. Step 3: Cross multiply
    256,248,000.80x = 384,372,001.20 × 253,859,213.60
  4. Step 4: Simplify right side
    256,248,000.80x = 97,576,373,954,490,256
  5. Step 5: Solve for x
    x = 97,576,373,954,490,256/256,248,000.80
  6. Step 6: Final answer
    x = 380,788,820.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.