Home / 55,638,399.19-83,398,695.28-18,715,139.07

Finding the Fourth Proportional to 55,638,399.19, 83,398,695.28 and 18,715,139.07

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Solution

The fourth proportional to 55,638,399.19, 83,398,695.28 and 18,715,139.07 is: 28,052,895.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,638,399.19 : 83,398,695.28 = 18,715,139.07 : x
  2. Step 2: Convert to fraction form
    55,638,399.19/83,398,695.28 = 18,715,139.07/x
  3. Step 3: Cross multiply
    55,638,399.19x = 83,398,695.28 × 18,715,139.07
  4. Step 4: Simplify right side
    55,638,399.19x = 1,560,818,180,421,752.75
  5. Step 5: Solve for x
    x = 1,560,818,180,421,752.75/55,638,399.19
  6. Step 6: Final answer
    x = 28,052,895.18

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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.