Home / 1,384,174,854.35-1,910,173,209.15-789,489,448.27

Finding the Fourth Proportional to 1,384,174,854.35, 1,910,173,209.15 and 789,489,448.27

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Solution

The fourth proportional to 1,384,174,854.35, 1,910,173,209.15 and 789,489,448.27 is: 1,089,502,231.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,174,854.35 : 1,910,173,209.15 = 789,489,448.27 : x
  2. Step 2: Convert to fraction form
    1,384,174,854.35/1,910,173,209.15 = 789,489,448.27/x
  3. Step 3: Cross multiply
    1,384,174,854.35x = 1,910,173,209.15 × 789,489,448.27
  4. Step 4: Simplify right side
    1,384,174,854.35x = 1,508,061,592,978,470,400
  5. Step 5: Solve for x
    x = 1,508,061,592,978,470,400/1,384,174,854.35
  6. Step 6: Final answer
    x = 1,089,502,231.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.