Home / 80,919,005.03-121,378,507.54-80,919,005.03

Finding the Fourth Proportional to 80,919,005.03, 121,378,507.54 and 80,919,005.03

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Solution

The fourth proportional to 80,919,005.03, 121,378,507.54 and 80,919,005.03 is: 121,378,507.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,919,005.03 : 121,378,507.54 = 80,919,005.03 : x
  2. Step 2: Convert to fraction form
    80,919,005.03/121,378,507.54 = 80,919,005.03/x
  3. Step 3: Cross multiply
    80,919,005.03x = 121,378,507.54 × 80,919,005.03
  4. Step 4: Simplify right side
    80,919,005.03x = 9,821,828,061,353,964
  5. Step 5: Solve for x
    x = 9,821,828,061,353,964/80,919,005.03
  6. Step 6: Final answer
    x = 121,378,507.54

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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.