Home / 885,120,091.20-1,328,687,906.40-521,819,150.40

Finding the Fourth Proportional to 885,120,091.20, 1,328,687,906.40 and 521,819,150.40

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Solution

The fourth proportional to 885,120,091.20, 1,328,687,906.40 and 521,819,150.40 is: 783,322,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,120,091.20 : 1,328,687,906.40 = 521,819,150.40 : x
  2. Step 2: Convert to fraction form
    885,120,091.20/1,328,687,906.40 = 521,819,150.40/x
  3. Step 3: Cross multiply
    885,120,091.20x = 1,328,687,906.40 × 521,819,150.40
  4. Step 4: Simplify right side
    885,120,091.20x = 693,334,794,464,402,688
  5. Step 5: Solve for x
    x = 693,334,794,464,402,688/885,120,091.20
  6. Step 6: Final answer
    x = 783,322,852.30

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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.