Home / 21,398,839.67-29,533,184.31-11,983,216.71

Finding the Fourth Proportional to 21,398,839.67, 29,533,184.31 and 11,983,216.71

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Solution

The fourth proportional to 21,398,839.67, 29,533,184.31 and 11,983,216.71 is: 16,538,398.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398,839.67 : 29,533,184.31 = 11,983,216.71 : x
  2. Step 2: Convert to fraction form
    21,398,839.67/29,533,184.31 = 11,983,216.71/x
  3. Step 3: Cross multiply
    21,398,839.67x = 29,533,184.31 × 11,983,216.71
  4. Step 4: Simplify right side
    21,398,839.67x = 353,902,547,723,101.81
  5. Step 5: Solve for x
    x = 353,902,547,723,101.81/21,398,839.67
  6. Step 6: Final answer
    x = 16,538,398.96

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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.