Home / 766,823,745.65-1,149,065,063.04-455,317,919.51

Finding the Fourth Proportional to 766,823,745.65, 1,149,065,063.04 and 455,317,919.51

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Solution

The fourth proportional to 766,823,745.65, 1,149,065,063.04 and 455,317,919.51 is: 682,281,837.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,823,745.65 : 1,149,065,063.04 = 455,317,919.51 : x
  2. Step 2: Convert to fraction form
    766,823,745.65/1,149,065,063.04 = 455,317,919.51/x
  3. Step 3: Cross multiply
    766,823,745.65x = 1,149,065,063.04 × 455,317,919.51
  4. Step 4: Simplify right side
    766,823,745.65x = 523,189,913,884,999,744
  5. Step 5: Solve for x
    x = 523,189,913,884,999,744/766,823,745.65
  6. Step 6: Final answer
    x = 682,281,837.06

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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.