Home / 31,231,176.40-46,778,536.68-12,980,036.08

Finding the Fourth Proportional to 31,231,176.40, 46,778,536.68 and 12,980,036.08

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Solution

The fourth proportional to 31,231,176.40, 46,778,536.68 and 12,980,036.08 is: 19,441,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,231,176.40 : 46,778,536.68 = 12,980,036.08 : x
  2. Step 2: Convert to fraction form
    31,231,176.40/46,778,536.68 = 12,980,036.08/x
  3. Step 3: Cross multiply
    31,231,176.40x = 46,778,536.68 × 12,980,036.08
  4. Step 4: Simplify right side
    31,231,176.40x = 607,187,093,876,003.38
  5. Step 5: Solve for x
    x = 607,187,093,876,003.38/31,231,176.40
  6. Step 6: Final answer
    x = 19,441,697.81

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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.