Home / 21,279,636.28-31,916,461.80-6,902,830.48

Finding the Fourth Proportional to 21,279,636.28, 31,916,461.80 and 6,902,830.48

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Solution

The fourth proportional to 21,279,636.28, 31,916,461.80 and 6,902,830.48 is: 10,353,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,279,636.28 : 31,916,461.80 = 6,902,830.48 : x
  2. Step 2: Convert to fraction form
    21,279,636.28/31,916,461.80 = 6,902,830.48/x
  3. Step 3: Cross multiply
    21,279,636.28x = 31,916,461.80 × 6,902,830.48
  4. Step 4: Simplify right side
    21,279,636.28x = 220,313,925,326,795.69
  5. Step 5: Solve for x
    x = 220,313,925,326,795.69/21,279,636.28
  6. Step 6: Final answer
    x = 10,353,274.95

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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.