Home / 81,485,667.40-122,228,501.10-26,906,676.70

Finding the Fourth Proportional to 81,485,667.40, 122,228,501.10 and 26,906,676.70

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Solution

The fourth proportional to 81,485,667.40, 122,228,501.10 and 26,906,676.70 is: 40,360,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,485,667.40 : 122,228,501.10 = 26,906,676.70 : x
  2. Step 2: Convert to fraction form
    81,485,667.40/122,228,501.10 = 26,906,676.70/x
  3. Step 3: Cross multiply
    81,485,667.40x = 122,228,501.10 × 26,906,676.70
  4. Step 4: Simplify right side
    81,485,667.40x = 3,288,762,762,623,294
  5. Step 5: Solve for x
    x = 3,288,762,762,623,294/81,485,667.40
  6. Step 6: Final answer
    x = 40,360,015.05

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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.