Home / 55,638,399.13-83,398,695.19-18,715,139.01

Finding the Fourth Proportional to 55,638,399.13, 83,398,695.19 and 18,715,139.01

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Solution

The fourth proportional to 55,638,399.13, 83,398,695.19 and 18,715,139.01 is: 28,052,895.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,638,399.13 : 83,398,695.19 = 18,715,139.01 : x
  2. Step 2: Convert to fraction form
    55,638,399.13/83,398,695.19 = 18,715,139.01/x
  3. Step 3: Cross multiply
    55,638,399.13x = 83,398,695.19 × 18,715,139.01
  4. Step 4: Simplify right side
    55,638,399.13x = 1,560,818,173,686,680.75
  5. Step 5: Solve for x
    x = 1,560,818,173,686,680.75/55,638,399.13
  6. Step 6: Final answer
    x = 28,052,895.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.