Home / 13,090,119.64-18,064,192.88-7,209,640.92

Finding the Fourth Proportional to 13,090,119.64, 18,064,192.88 and 7,209,640.92

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Solution

The fourth proportional to 13,090,119.64, 18,064,192.88 and 7,209,640.92 is: 9,949,209.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090,119.64 : 18,064,192.88 = 7,209,640.92 : x
  2. Step 2: Convert to fraction form
    13,090,119.64/18,064,192.88 = 7,209,640.92/x
  3. Step 3: Cross multiply
    13,090,119.64x = 18,064,192.88 × 7,209,640.92
  4. Step 4: Simplify right side
    13,090,119.64x = 130,236,344,174,420.64
  5. Step 5: Solve for x
    x = 130,236,344,174,420.64/13,090,119.64
  6. Step 6: Final answer
    x = 9,949,209.61

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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.