Home / 641,654,802.20-962,482,203.30-156,980,610.20

Finding the Fourth Proportional to 641,654,802.20, 962,482,203.30 and 156,980,610.20

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Solution

The fourth proportional to 641,654,802.20, 962,482,203.30 and 156,980,610.20 is: 235,470,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,654,802.20 : 962,482,203.30 = 156,980,610.20 : x
  2. Step 2: Convert to fraction form
    641,654,802.20/962,482,203.30 = 156,980,610.20/x
  3. Step 3: Cross multiply
    641,654,802.20x = 962,482,203.30 × 156,980,610.20
  4. Step 4: Simplify right side
    641,654,802.20x = 151,091,043,580,674,432
  5. Step 5: Solve for x
    x = 151,091,043,580,674,432/641,654,802.20
  6. Step 6: Final answer
    x = 235,470,915.30

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Similar ratio
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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.