Home / 20,612,612.63-28,456,448.96-15,892,699.45

Finding the Fourth Proportional to 20,612,612.63, 28,456,448.96 and 15,892,699.45

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Solution

The fourth proportional to 20,612,612.63, 28,456,448.96 and 15,892,699.45 is: 21,940,440.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,612.63 : 28,456,448.96 = 15,892,699.45 : x
  2. Step 2: Convert to fraction form
    20,612,612.63/28,456,448.96 = 15,892,699.45/x
  3. Step 3: Cross multiply
    20,612,612.63x = 28,456,448.96 × 15,892,699.45
  4. Step 4: Simplify right side
    20,612,612.63x = 452,249,790,735,545.06
  5. Step 5: Solve for x
    x = 452,249,790,735,545.06/20,612,612.63
  6. Step 6: Final answer
    x = 21,940,440.00

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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.