Home / 13,090,138.93-18,064,219.39-7,209,660.16

Finding the Fourth Proportional to 13,090,138.93, 18,064,219.39 and 7,209,660.16

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Solution

The fourth proportional to 13,090,138.93, 18,064,219.39 and 7,209,660.16 is: 9,949,236.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090,138.93 : 18,064,219.39 = 7,209,660.16 : x
  2. Step 2: Convert to fraction form
    13,090,138.93/18,064,219.39 = 7,209,660.16/x
  3. Step 3: Cross multiply
    13,090,138.93x = 18,064,219.39 × 7,209,660.16
  4. Step 4: Simplify right side
    13,090,138.93x = 130,236,882,857,582.52
  5. Step 5: Solve for x
    x = 130,236,882,857,582.52/13,090,138.93
  6. Step 6: Final answer
    x = 9,949,236.10

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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.