Home / 21,260,064.20-31,866,476.70-11,682,316.40

Finding the Fourth Proportional to 21,260,064.20, 31,866,476.70 and 11,682,316.40

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Solution

The fourth proportional to 21,260,064.20, 31,866,476.70 and 11,682,316.40 is: 17,510,495.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260,064.20 : 31,866,476.70 = 11,682,316.40 : x
  2. Step 2: Convert to fraction form
    21,260,064.20/31,866,476.70 = 11,682,316.40/x
  3. Step 3: Cross multiply
    21,260,064.20x = 31,866,476.70 × 11,682,316.40
  4. Step 4: Simplify right side
    21,260,064.20x = 372,274,263,362,627.88
  5. Step 5: Solve for x
    x = 372,274,263,362,627.88/21,260,064.20
  6. Step 6: Final answer
    x = 17,510,495.73

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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.