Home / 69,378,983.36-95,743,767.20-38,439,640

Finding the Fourth Proportional to 69,378,983.36, 95,743,767.20 and 38,439,640

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Solution

The fourth proportional to 69,378,983.36, 95,743,767.20 and 38,439,640 is: 53,047,129.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,378,983.36 : 95,743,767.20 = 38,439,640 : x
  2. Step 2: Convert to fraction form
    69,378,983.36/95,743,767.20 = 38,439,640/x
  3. Step 3: Cross multiply
    69,378,983.36x = 95,743,767.20 × 38,439,640
  4. Step 4: Simplify right side
    69,378,983.36x = 3,680,355,943,411,808
  5. Step 5: Solve for x
    x = 3,680,355,943,411,808/69,378,983.36
  6. Step 6: Final answer
    x = 53,047,129.91

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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.