Home / 28,856,407.35-39,821,856.08-15,804,487.11

Finding the Fourth Proportional to 28,856,407.35, 39,821,856.08 and 15,804,487.11

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Solution

The fourth proportional to 28,856,407.35, 39,821,856.08 and 15,804,487.11 is: 21,810,199.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856,407.35 : 39,821,856.08 = 15,804,487.11 : x
  2. Step 2: Convert to fraction form
    28,856,407.35/39,821,856.08 = 15,804,487.11/x
  3. Step 3: Cross multiply
    28,856,407.35x = 39,821,856.08 × 15,804,487.11
  4. Step 4: Simplify right side
    28,856,407.35x = 629,364,011,033,612.75
  5. Step 5: Solve for x
    x = 629,364,011,033,612.75/28,856,407.35
  6. Step 6: Final answer
    x = 21,810,199.84

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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.