Home / 825,886,009.41-1,139,752,760.85-449,524,402.89

Finding the Fourth Proportional to 825,886,009.41, 1,139,752,760.85 and 449,524,402.89

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Solution

The fourth proportional to 825,886,009.41, 1,139,752,760.85 and 449,524,402.89 is: 620,360,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,886,009.41 : 1,139,752,760.85 = 449,524,402.89 : x
  2. Step 2: Convert to fraction form
    825,886,009.41/1,139,752,760.85 = 449,524,402.89/x
  3. Step 3: Cross multiply
    825,886,009.41x = 1,139,752,760.85 × 449,524,402.89
  4. Step 4: Simplify right side
    825,886,009.41x = 512,346,679,263,325,184
  5. Step 5: Solve for x
    x = 512,346,679,263,325,184/825,886,009.41
  6. Step 6: Final answer
    x = 620,360,041.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.