Home / 862,164,010.20-1,293,246,015.30-402,148,680.60

Finding the Fourth Proportional to 862,164,010.20, 1,293,246,015.30 and 402,148,680.60

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Solution

The fourth proportional to 862,164,010.20, 1,293,246,015.30 and 402,148,680.60 is: 603,223,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,164,010.20 : 1,293,246,015.30 = 402,148,680.60 : x
  2. Step 2: Convert to fraction form
    862,164,010.20/1,293,246,015.30 = 402,148,680.60/x
  3. Step 3: Cross multiply
    862,164,010.20x = 1,293,246,015.30 × 402,148,680.60
  4. Step 4: Simplify right side
    862,164,010.20x = 520,077,178,744,102,400
  5. Step 5: Solve for x
    x = 520,077,178,744,102,400/862,164,010.20
  6. Step 6: Final answer
    x = 603,223,020.90

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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.