Home / 426,694,016.40-640,041,024.60-319,198,592.40

Finding the Fourth Proportional to 426,694,016.40, 640,041,024.60 and 319,198,592.40

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Solution

The fourth proportional to 426,694,016.40, 640,041,024.60 and 319,198,592.40 is: 478,797,888.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,694,016.40 : 640,041,024.60 = 319,198,592.40 : x
  2. Step 2: Convert to fraction form
    426,694,016.40/640,041,024.60 = 319,198,592.40/x
  3. Step 3: Cross multiply
    426,694,016.40x = 640,041,024.60 × 319,198,592.40
  4. Step 4: Simplify right side
    426,694,016.40x = 204,300,194,130,573,760
  5. Step 5: Solve for x
    x = 204,300,194,130,573,760/426,694,016.40
  6. Step 6: Final answer
    x = 478,797,888.60

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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.