Home / 13,260,660.20-18,288,793.58-7,822,903.40

Finding the Fourth Proportional to 13,260,660.20, 18,288,793.58 and 7,822,903.40

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Solution

The fourth proportional to 13,260,660.20, 18,288,793.58 and 7,822,903.40 is: 10,789,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260,660.20 : 18,288,793.58 = 7,822,903.40 : x
  2. Step 2: Convert to fraction form
    13,260,660.20/18,288,793.58 = 7,822,903.40/x
  3. Step 3: Cross multiply
    13,260,660.20x = 18,288,793.58 × 7,822,903.40
  4. Step 4: Simplify right side
    13,260,660.20x = 143,071,465,478,880.16
  5. Step 5: Solve for x
    x = 143,071,465,478,880.16/13,260,660.20
  6. Step 6: Final answer
    x = 10,789,166.10

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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.