Home / 21,899,820.29-30,221,948.68-12,110,927.36

Finding the Fourth Proportional to 21,899,820.29, 30,221,948.68 and 12,110,927.36

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Solution

The fourth proportional to 21,899,820.29, 30,221,948.68 and 12,110,927.36 is: 16,713,188.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899,820.29 : 30,221,948.68 = 12,110,927.36 : x
  2. Step 2: Convert to fraction form
    21,899,820.29/30,221,948.68 = 12,110,927.36/x
  3. Step 3: Cross multiply
    21,899,820.29x = 30,221,948.68 × 12,110,927.36
  4. Step 4: Simplify right side
    21,899,820.29x = 366,015,824,959,740.81
  5. Step 5: Solve for x
    x = 366,015,824,959,740.81/21,899,820.29
  6. Step 6: Final answer
    x = 16,713,188.52

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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.