Home / 31,702,947.92-43,763,460.04-21,403,621.20

Finding the Fourth Proportional to 31,702,947.92, 43,763,460.04 and 21,403,621.20

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Solution

The fourth proportional to 31,702,947.92, 43,763,460.04 and 21,403,621.20 is: 29,546,038.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,702,947.92 : 43,763,460.04 = 21,403,621.20 : x
  2. Step 2: Convert to fraction form
    31,702,947.92/43,763,460.04 = 21,403,621.20/x
  3. Step 3: Cross multiply
    31,702,947.92x = 43,763,460.04 × 21,403,621.20
  4. Step 4: Simplify right side
    31,702,947.92x = 936,696,521,097,496.75
  5. Step 5: Solve for x
    x = 936,696,521,097,496.75/31,702,947.92
  6. Step 6: Final answer
    x = 29,546,038.54

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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.