Home / 511,294,839.60-766,942,259.40-426,264,279.60

Finding the Fourth Proportional to 511,294,839.60, 766,942,259.40 and 426,264,279.60

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Solution

The fourth proportional to 511,294,839.60, 766,942,259.40 and 426,264,279.60 is: 639,396,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,294,839.60 : 766,942,259.40 = 426,264,279.60 : x
  2. Step 2: Convert to fraction form
    511,294,839.60/766,942,259.40 = 426,264,279.60/x
  3. Step 3: Cross multiply
    511,294,839.60x = 766,942,259.40 × 426,264,279.60
  4. Step 4: Simplify right side
    511,294,839.60x = 326,920,089,697,937,344
  5. Step 5: Solve for x
    x = 326,920,089,697,937,344/511,294,839.60
  6. Step 6: Final answer
    x = 639,396,419.40

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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.