Home / 21,919,811.66-30,249,398.92-12,130,930.88

Finding the Fourth Proportional to 21,919,811.66, 30,249,398.92 and 12,130,930.88

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Solution

The fourth proportional to 21,919,811.66, 30,249,398.92 and 12,130,930.88 is: 16,740,717.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,811.66 : 30,249,398.92 = 12,130,930.88 : x
  2. Step 2: Convert to fraction form
    21,919,811.66/30,249,398.92 = 12,130,930.88/x
  3. Step 3: Cross multiply
    21,919,811.66x = 30,249,398.92 × 12,130,930.88
  4. Step 4: Simplify right side
    21,919,811.66x = 366,953,367,414,673.06
  5. Step 5: Solve for x
    x = 366,953,367,414,673.06/21,919,811.66
  6. Step 6: Final answer
    x = 16,740,717.17

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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.