Home / 484,984,851.80-727,722,999.30-212,358,291.80

Finding the Fourth Proportional to 484,984,851.80, 727,722,999.30 and 212,358,291.80

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Solution

The fourth proportional to 484,984,851.80, 727,722,999.30 and 212,358,291.80 is: 318,645,030.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,984,851.80 : 727,722,999.30 = 212,358,291.80 : x
  2. Step 2: Convert to fraction form
    484,984,851.80/727,722,999.30 = 212,358,291.80/x
  3. Step 3: Cross multiply
    484,984,851.80x = 727,722,999.30 × 212,358,291.80
  4. Step 4: Simplify right side
    484,984,851.80x = 154,538,013,034,920,608
  5. Step 5: Solve for x
    x = 154,538,013,034,920,608/484,984,851.80
  6. Step 6: Final answer
    x = 318,645,030.79

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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.