Home / 21,085,222.60-31,606,838.70-9,705,824.20

Finding the Fourth Proportional to 21,085,222.60, 31,606,838.70 and 9,705,824.20

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Solution

The fourth proportional to 21,085,222.60, 31,606,838.70 and 9,705,824.20 is: 14,549,071.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,085,222.60 : 31,606,838.70 = 9,705,824.20 : x
  2. Step 2: Convert to fraction form
    21,085,222.60/31,606,838.70 = 9,705,824.20/x
  3. Step 3: Cross multiply
    21,085,222.60x = 31,606,838.70 × 9,705,824.20
  4. Step 4: Simplify right side
    21,085,222.60x = 306,770,419,939,956.50
  5. Step 5: Solve for x
    x = 306,770,419,939,956.50/21,085,222.60
  6. Step 6: Final answer
    x = 14,549,071.91

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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.