Home / 354,367,918.40-531,551,877.60-217,609,851.20

Finding the Fourth Proportional to 354,367,918.40, 531,551,877.60 and 217,609,851.20

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Solution

The fourth proportional to 354,367,918.40, 531,551,877.60 and 217,609,851.20 is: 326,414,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,367,918.40 : 531,551,877.60 = 217,609,851.20 : x
  2. Step 2: Convert to fraction form
    354,367,918.40/531,551,877.60 = 217,609,851.20/x
  3. Step 3: Cross multiply
    354,367,918.40x = 531,551,877.60 × 217,609,851.20
  4. Step 4: Simplify right side
    354,367,918.40x = 115,670,924,989,616,608
  5. Step 5: Solve for x
    x = 115,670,924,989,616,608/354,367,918.40
  6. Step 6: Final answer
    x = 326,414,776.80

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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.