Home / 38,307,960.84-52,866,110.43-20,905,429.12

Finding the Fourth Proportional to 38,307,960.84, 52,866,110.43 and 20,905,429.12

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Solution

The fourth proportional to 38,307,960.84, 52,866,110.43 and 20,905,429.12 is: 28,850,105.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,307,960.84 : 52,866,110.43 = 20,905,429.12 : x
  2. Step 2: Convert to fraction form
    38,307,960.84/52,866,110.43 = 20,905,429.12/x
  3. Step 3: Cross multiply
    38,307,960.84x = 52,866,110.43 × 20,905,429.12
  4. Step 4: Simplify right side
    38,307,960.84x = 1,105,188,724,312,292.38
  5. Step 5: Solve for x
    x = 1,105,188,724,312,292.38/38,307,960.84
  6. Step 6: Final answer
    x = 28,850,105.83

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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.