Home / 13,169,191.32-19,852,492.78-12,291,329.52

Finding the Fourth Proportional to 13,169,191.32, 19,852,492.78 and 12,291,329.52

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Solution

The fourth proportional to 13,169,191.32, 19,852,492.78 and 12,291,329.52 is: 18,529,120.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169,191.32 : 19,852,492.78 = 12,291,329.52 : x
  2. Step 2: Convert to fraction form
    13,169,191.32/19,852,492.78 = 12,291,329.52/x
  3. Step 3: Cross multiply
    13,169,191.32x = 19,852,492.78 × 12,291,329.52
  4. Step 4: Simplify right side
    13,169,191.32x = 244,013,530,490,944.19
  5. Step 5: Solve for x
    x = 244,013,530,490,944.19/13,169,191.32
  6. Step 6: Final answer
    x = 18,529,120.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.