Home / 13,090,139.43-18,064,220.09-7,209,660.66

Finding the Fourth Proportional to 13,090,139.43, 18,064,220.09 and 7,209,660.66

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Solution

The fourth proportional to 13,090,139.43, 18,064,220.09 and 7,209,660.66 is: 9,949,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090,139.43 : 18,064,220.09 = 7,209,660.66 : x
  2. Step 2: Convert to fraction form
    13,090,139.43/18,064,220.09 = 7,209,660.66/x
  3. Step 3: Cross multiply
    13,090,139.43x = 18,064,220.09 × 7,209,660.66
  4. Step 4: Simplify right side
    13,090,139.43x = 130,236,896,900,406.36
  5. Step 5: Solve for x
    x = 130,236,896,900,406.36/13,090,139.43
  6. Step 6: Final answer
    x = 9,949,236.80

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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.