Home / 28,848,800.79-39,811,042.94-15,617,681.78

Finding the Fourth Proportional to 28,848,800.79, 39,811,042.94 and 15,617,681.78

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Solution

The fourth proportional to 28,848,800.79, 39,811,042.94 and 15,617,681.78 is: 21,552,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,848,800.79 : 39,811,042.94 = 15,617,681.78 : x
  2. Step 2: Convert to fraction form
    28,848,800.79/39,811,042.94 = 15,617,681.78/x
  3. Step 3: Cross multiply
    28,848,800.79x = 39,811,042.94 × 15,617,681.78
  4. Step 4: Simplify right side
    28,848,800.79x = 621,756,199,689,692
  5. Step 5: Solve for x
    x = 621,756,199,689,692/28,848,800.79
  6. Step 6: Final answer
    x = 21,552,237.27

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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.