Home / 338,659,009.20-507,988,513.80-108,651,344.40

Finding the Fourth Proportional to 338,659,009.20, 507,988,513.80 and 108,651,344.40

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Solution

The fourth proportional to 338,659,009.20, 507,988,513.80 and 108,651,344.40 is: 162,977,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,659,009.20 : 507,988,513.80 = 108,651,344.40 : x
  2. Step 2: Convert to fraction form
    338,659,009.20/507,988,513.80 = 108,651,344.40/x
  3. Step 3: Cross multiply
    338,659,009.20x = 507,988,513.80 × 108,651,344.40
  4. Step 4: Simplify right side
    338,659,009.20x = 55,193,634,964,127,960
  5. Step 5: Solve for x
    x = 55,193,634,964,127,960/338,659,009.20
  6. Step 6: Final answer
    x = 162,977,016.60

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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.