Home / 31,154,709.81-46,706,780.16-12,972,507.78

Finding the Fourth Proportional to 31,154,709.81, 46,706,780.16 and 12,972,507.78

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Solution

The fourth proportional to 31,154,709.81, 46,706,780.16 and 12,972,507.78 is: 19,448,233.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154,709.81 : 46,706,780.16 = 12,972,507.78 : x
  2. Step 2: Convert to fraction form
    31,154,709.81/46,706,780.16 = 12,972,507.78/x
  3. Step 3: Cross multiply
    31,154,709.81x = 46,706,780.16 × 12,972,507.78
  4. Step 4: Simplify right side
    31,154,709.81x = 605,904,069,004,349.62
  5. Step 5: Solve for x
    x = 605,904,069,004,349.62/31,154,709.81
  6. Step 6: Final answer
    x = 19,448,233.44

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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.