Home / 28,865,764.78-39,834,803.44-15,812,739.12

Finding the Fourth Proportional to 28,865,764.78, 39,834,803.44 and 15,812,739.12

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Solution

The fourth proportional to 28,865,764.78, 39,834,803.44 and 15,812,739.12 is: 21,821,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865,764.78 : 39,834,803.44 = 15,812,739.12 : x
  2. Step 2: Convert to fraction form
    28,865,764.78/39,834,803.44 = 15,812,739.12/x
  3. Step 3: Cross multiply
    28,865,764.78x = 39,834,803.44 × 15,812,739.12
  4. Step 4: Simplify right side
    28,865,764.78x = 629,897,354,454,492.75
  5. Step 5: Solve for x
    x = 629,897,354,454,492.75/28,865,764.78
  6. Step 6: Final answer
    x = 21,821,606.30

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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.