Home / 28,769,166.70-39,702,035.28-15,717,270.98

Finding the Fourth Proportional to 28,769,166.70, 39,702,035.28 and 15,717,270.98

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Solution

The fourth proportional to 28,769,166.70, 39,702,035.28 and 15,717,270.98 is: 21,690,153.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,769,166.70 : 39,702,035.28 = 15,717,270.98 : x
  2. Step 2: Convert to fraction form
    28,769,166.70/39,702,035.28 = 15,717,270.98/x
  3. Step 3: Cross multiply
    28,769,166.70x = 39,702,035.28 × 15,717,270.98
  4. Step 4: Simplify right side
    28,769,166.70x = 624,007,647,111,475
  5. Step 5: Solve for x
    x = 624,007,647,111,475/28,769,166.70
  6. Step 6: Final answer
    x = 21,690,153.69

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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.