Home / 15,136,214.39-20,880,711-9,906,920.30

Finding the Fourth Proportional to 15,136,214.39, 20,880,711 and 9,906,920.30

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Solution

The fourth proportional to 15,136,214.39, 20,880,711 and 9,906,920.30 is: 13,666,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136,214.39 : 20,880,711 = 9,906,920.30 : x
  2. Step 2: Convert to fraction form
    15,136,214.39/20,880,711 = 9,906,920.30/x
  3. Step 3: Cross multiply
    15,136,214.39x = 20,880,711 × 9,906,920.30
  4. Step 4: Simplify right side
    15,136,214.39x = 206,863,539,684,333.31
  5. Step 5: Solve for x
    x = 206,863,539,684,333.31/15,136,214.39
  6. Step 6: Final answer
    x = 13,666,795.04

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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.