Home / 215,317,208.80-322,975,813.20-100,313,376.40

Finding the Fourth Proportional to 215,317,208.80, 322,975,813.20 and 100,313,376.40

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Solution

The fourth proportional to 215,317,208.80, 322,975,813.20 and 100,313,376.40 is: 150,470,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,317,208.80 : 322,975,813.20 = 100,313,376.40 : x
  2. Step 2: Convert to fraction form
    215,317,208.80/322,975,813.20 = 100,313,376.40/x
  3. Step 3: Cross multiply
    215,317,208.80x = 322,975,813.20 × 100,313,376.40
  4. Step 4: Simplify right side
    215,317,208.80x = 32,398,794,317,627,688
  5. Step 5: Solve for x
    x = 32,398,794,317,627,688/215,317,208.80
  6. Step 6: Final answer
    x = 150,470,064.60

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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.