Home / 22,551,821.69-31,105,433.94-20,697,212.88

Finding the Fourth Proportional to 22,551,821.69, 31,105,433.94 and 20,697,212.88

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Solution

The fourth proportional to 22,551,821.69, 31,105,433.94 and 20,697,212.88 is: 28,547,396.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,551,821.69 : 31,105,433.94 = 20,697,212.88 : x
  2. Step 2: Convert to fraction form
    22,551,821.69/31,105,433.94 = 20,697,212.88/x
  3. Step 3: Cross multiply
    22,551,821.69x = 31,105,433.94 × 20,697,212.88
  4. Step 4: Simplify right side
    22,551,821.69x = 643,795,787,903,342.62
  5. Step 5: Solve for x
    x = 643,795,787,903,342.62/22,551,821.69
  6. Step 6: Final answer
    x = 28,547,396.17

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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.