Home / 21,303,336.30-31,955,004.45-13,225,433.10

Finding the Fourth Proportional to 21,303,336.30, 31,955,004.45 and 13,225,433.10

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Solution

The fourth proportional to 21,303,336.30, 31,955,004.45 and 13,225,433.10 is: 19,838,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303,336.30 : 31,955,004.45 = 13,225,433.10 : x
  2. Step 2: Convert to fraction form
    21,303,336.30/31,955,004.45 = 13,225,433.10/x
  3. Step 3: Cross multiply
    21,303,336.30x = 31,955,004.45 × 13,225,433.10
  4. Step 4: Simplify right side
    21,303,336.30x = 422,618,773,563,677.25
  5. Step 5: Solve for x
    x = 422,618,773,563,677.25/21,303,336.30
  6. Step 6: Final answer
    x = 19,838,149.65

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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.