Home / 338,428,268.30-507,642,402.45-83,126,636.30

Finding the Fourth Proportional to 338,428,268.30, 507,642,402.45 and 83,126,636.30

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Solution

The fourth proportional to 338,428,268.30, 507,642,402.45 and 83,126,636.30 is: 124,689,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,428,268.30 : 507,642,402.45 = 83,126,636.30 : x
  2. Step 2: Convert to fraction form
    338,428,268.30/507,642,402.45 = 83,126,636.30/x
  3. Step 3: Cross multiply
    338,428,268.30x = 507,642,402.45 × 83,126,636.30
  4. Step 4: Simplify right side
    338,428,268.30x = 42,198,605,358,919,376
  5. Step 5: Solve for x
    x = 42,198,605,358,919,376/338,428,268.30
  6. Step 6: Final answer
    x = 124,689,954.45

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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.