Home / 131,239,138.97-181,115,191.47-75,484,469.93

Finding the Fourth Proportional to 131,239,138.97, 181,115,191.47 and 75,484,469.93

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Solution

The fourth proportional to 131,239,138.97, 181,115,191.47 and 75,484,469.93 is: 104,171,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,239,138.97 : 181,115,191.47 = 75,484,469.93 : x
  2. Step 2: Convert to fraction form
    131,239,138.97/181,115,191.47 = 75,484,469.93/x
  3. Step 3: Cross multiply
    131,239,138.97x = 181,115,191.47 × 75,484,469.93
  4. Step 4: Simplify right side
    131,239,138.97x = 13,671,384,223,477,830
  5. Step 5: Solve for x
    x = 13,671,384,223,477,830/131,239,138.97
  6. Step 6: Final answer
    x = 104,171,547.69

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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.