Home / 20,553,990.84-28,362,440.16-11,384,920.44

Finding the Fourth Proportional to 20,553,990.84, 28,362,440.16 and 11,384,920.44

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Solution

The fourth proportional to 20,553,990.84, 28,362,440.16 and 11,384,920.44 is: 15,710,045.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553,990.84 : 28,362,440.16 = 11,384,920.44 : x
  2. Step 2: Convert to fraction form
    20,553,990.84/28,362,440.16 = 11,384,920.44/x
  3. Step 3: Cross multiply
    20,553,990.84x = 28,362,440.16 × 11,384,920.44
  4. Step 4: Simplify right side
    20,553,990.84x = 322,904,124,705,860.88
  5. Step 5: Solve for x
    x = 322,904,124,705,860.88/20,553,990.84
  6. Step 6: Final answer
    x = 15,710,045.18

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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.