Home / 31,371,490.48-43,280,015.53-18,960,036.25

Finding the Fourth Proportional to 31,371,490.48, 43,280,015.53 and 18,960,036.25

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Solution

The fourth proportional to 31,371,490.48, 43,280,015.53 and 18,960,036.25 is: 26,157,209.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,371,490.48 : 43,280,015.53 = 18,960,036.25 : x
  2. Step 2: Convert to fraction form
    31,371,490.48/43,280,015.53 = 18,960,036.25/x
  3. Step 3: Cross multiply
    31,371,490.48x = 43,280,015.53 × 18,960,036.25
  4. Step 4: Simplify right side
    31,371,490.48x = 820,590,663,188,716.25
  5. Step 5: Solve for x
    x = 820,590,663,188,716.25/31,371,490.48
  6. Step 6: Final answer
    x = 26,157,209.96

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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.