Home / 512,245,101.60-768,367,652.40-148,776,199.20

Finding the Fourth Proportional to 512,245,101.60, 768,367,652.40 and 148,776,199.20

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Solution

The fourth proportional to 512,245,101.60, 768,367,652.40 and 148,776,199.20 is: 223,164,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,245,101.60 : 768,367,652.40 = 148,776,199.20 : x
  2. Step 2: Convert to fraction form
    512,245,101.60/768,367,652.40 = 148,776,199.20/x
  3. Step 3: Cross multiply
    512,245,101.60x = 768,367,652.40 × 148,776,199.20
  4. Step 4: Simplify right side
    512,245,101.60x = 114,314,818,912,298,752
  5. Step 5: Solve for x
    x = 114,314,818,912,298,752/512,245,101.60
  6. Step 6: Final answer
    x = 223,164,298.80

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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.