Home / 257,472,000.80-386,208,001.20-255,083,213.60

Finding the Fourth Proportional to 257,472,000.80, 386,208,001.20 and 255,083,213.60

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Solution

The fourth proportional to 257,472,000.80, 386,208,001.20 and 255,083,213.60 is: 382,624,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,472,000.80 : 386,208,001.20 = 255,083,213.60 : x
  2. Step 2: Convert to fraction form
    257,472,000.80/386,208,001.20 = 255,083,213.60/x
  3. Step 3: Cross multiply
    257,472,000.80x = 386,208,001.20 × 255,083,213.60
  4. Step 4: Simplify right side
    257,472,000.80x = 98,515,178,064,128,656
  5. Step 5: Solve for x
    x = 98,515,178,064,128,656/257,472,000.80
  6. Step 6: Final answer
    x = 382,624,820.40

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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.