Home / 131,481,429.93-181,502,487.05-78,576,801.57

Finding the Fourth Proportional to 131,481,429.93, 181,502,487.05 and 78,576,801.57

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Solution

The fourth proportional to 131,481,429.93, 181,502,487.05 and 78,576,801.57 is: 108,470,716.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,481,429.93 : 181,502,487.05 = 78,576,801.57 : x
  2. Step 2: Convert to fraction form
    131,481,429.93/181,502,487.05 = 78,576,801.57/x
  3. Step 3: Cross multiply
    131,481,429.93x = 181,502,487.05 × 78,576,801.57
  4. Step 4: Simplify right side
    131,481,429.93x = 14,261,884,908,996,458
  5. Step 5: Solve for x
    x = 14,261,884,908,996,458/131,481,429.93
  6. Step 6: Final answer
    x = 108,470,716.49

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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.