Home / 21,280,292.76-31,924,927.74-6,902,243.88

Finding the Fourth Proportional to 21,280,292.76, 31,924,927.74 and 6,902,243.88

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Solution

The fourth proportional to 21,280,292.76, 31,924,927.74 and 6,902,243.88 is: 10,354,821.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280,292.76 : 31,924,927.74 = 6,902,243.88 : x
  2. Step 2: Convert to fraction form
    21,280,292.76/31,924,927.74 = 6,902,243.88/x
  3. Step 3: Cross multiply
    21,280,292.76x = 31,924,927.74 × 6,902,243.88
  4. Step 4: Simplify right side
    21,280,292.76x = 220,353,637,112,857.22
  5. Step 5: Solve for x
    x = 220,353,637,112,857.22/21,280,292.76
  6. Step 6: Final answer
    x = 10,354,821.69

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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.