Home / 354,294,047.20-531,441,070.80-199,325,851.60

Finding the Fourth Proportional to 354,294,047.20, 531,441,070.80 and 199,325,851.60

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Solution

The fourth proportional to 354,294,047.20, 531,441,070.80 and 199,325,851.60 is: 298,988,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,047.20 : 531,441,070.80 = 199,325,851.60 : x
  2. Step 2: Convert to fraction form
    354,294,047.20/531,441,070.80 = 199,325,851.60/x
  3. Step 3: Cross multiply
    354,294,047.20x = 531,441,070.80 × 199,325,851.60
  4. Step 4: Simplify right side
    354,294,047.20x = 105,929,944,012,425,888
  5. Step 5: Solve for x
    x = 105,929,944,012,425,888/354,294,047.20
  6. Step 6: Final answer
    x = 298,988,777.40

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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.