Home / 28,865,868.54-39,834,946.83-15,812,842.87

Finding the Fourth Proportional to 28,865,868.54, 39,834,946.83 and 15,812,842.87

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Solution

The fourth proportional to 28,865,868.54, 39,834,946.83 and 15,812,842.87 is: 21,821,749.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865,868.54 : 39,834,946.83 = 15,812,842.87 : x
  2. Step 2: Convert to fraction form
    28,865,868.54/39,834,946.83 = 15,812,842.87/x
  3. Step 3: Cross multiply
    28,865,868.54x = 39,834,946.83 × 15,812,842.87
  4. Step 4: Simplify right side
    28,865,868.54x = 629,903,754,957,594.50
  5. Step 5: Solve for x
    x = 629,903,754,957,594.50/28,865,868.54
  6. Step 6: Final answer
    x = 21,821,749.59

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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.