Home / 511,294,697.60-766,942,046.40-426,264,137.60

Finding the Fourth Proportional to 511,294,697.60, 766,942,046.40 and 426,264,137.60

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Solution

The fourth proportional to 511,294,697.60, 766,942,046.40 and 426,264,137.60 is: 639,396,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,294,697.60 : 766,942,046.40 = 426,264,137.60 : x
  2. Step 2: Convert to fraction form
    511,294,697.60/766,942,046.40 = 426,264,137.60/x
  3. Step 3: Cross multiply
    511,294,697.60x = 766,942,046.40 × 426,264,137.60
  4. Step 4: Simplify right side
    511,294,697.60x = 326,919,889,997,875,200
  5. Step 5: Solve for x
    x = 326,919,889,997,875,200/511,294,697.60
  6. Step 6: Final answer
    x = 639,396,206.40

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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.