Home / 13,247,999.20-19,871,998.80-13,164,018.40

Finding the Fourth Proportional to 13,247,999.20, 19,871,998.80 and 13,164,018.40

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Solution

The fourth proportional to 13,247,999.20, 19,871,998.80 and 13,164,018.40 is: 19,746,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247,999.20 : 19,871,998.80 = 13,164,018.40 : x
  2. Step 2: Convert to fraction form
    13,247,999.20/19,871,998.80 = 13,164,018.40/x
  3. Step 3: Cross multiply
    13,247,999.20x = 19,871,998.80 × 13,164,018.40
  4. Step 4: Simplify right side
    13,247,999.20x = 261,595,357,847,977.94
  5. Step 5: Solve for x
    x = 261,595,357,847,977.94/13,247,999.20
  6. Step 6: Final answer
    x = 19,746,027.60

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Similar ratio
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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.