Home / 12,947,999.70-19,421,999.55-8,161,094.10

Finding the Fourth Proportional to 12,947,999.70, 19,421,999.55 and 8,161,094.10

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Solution

The fourth proportional to 12,947,999.70, 19,421,999.55 and 8,161,094.10 is: 12,241,641.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,999.70 : 19,421,999.55 = 8,161,094.10 : x
  2. Step 2: Convert to fraction form
    12,947,999.70/19,421,999.55 = 8,161,094.10/x
  3. Step 3: Cross multiply
    12,947,999.70x = 19,421,999.55 × 8,161,094.10
  4. Step 4: Simplify right side
    12,947,999.70x = 158,504,765,937,707.66
  5. Step 5: Solve for x
    x = 158,504,765,937,707.66/12,947,999.70
  6. Step 6: Final answer
    x = 12,241,641.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.