Home / 485,112,000.80-727,668,001.20-140,100,503.60

Finding the Fourth Proportional to 485,112,000.80, 727,668,001.20 and 140,100,503.60

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Solution

The fourth proportional to 485,112,000.80, 727,668,001.20 and 140,100,503.60 is: 210,150,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,112,000.80 : 727,668,001.20 = 140,100,503.60 : x
  2. Step 2: Convert to fraction form
    485,112,000.80/727,668,001.20 = 140,100,503.60/x
  3. Step 3: Cross multiply
    485,112,000.80x = 727,668,001.20 × 140,100,503.60
  4. Step 4: Simplify right side
    485,112,000.80x = 101,946,653,421,725,408
  5. Step 5: Solve for x
    x = 101,946,653,421,725,408/485,112,000.80
  6. Step 6: Final answer
    x = 210,150,755.40

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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.