Home / 20,318,981.42-28,040,212.49-11,026,551.58

Finding the Fourth Proportional to 20,318,981.42, 28,040,212.49 and 11,026,551.58

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Solution

The fourth proportional to 20,318,981.42, 28,040,212.49 and 11,026,551.58 is: 15,216,651.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318,981.42 : 28,040,212.49 = 11,026,551.58 : x
  2. Step 2: Convert to fraction form
    20,318,981.42/28,040,212.49 = 11,026,551.58/x
  3. Step 3: Cross multiply
    20,318,981.42x = 28,040,212.49 × 11,026,551.58
  4. Step 4: Simplify right side
    20,318,981.42x = 309,186,849,280,354.19
  5. Step 5: Solve for x
    x = 309,186,849,280,354.19/20,318,981.42
  6. Step 6: Final answer
    x = 15,216,651.01

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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.