Home / 21,615,598.98-29,824,647.66-12,912,072.84

Finding the Fourth Proportional to 21,615,598.98, 29,824,647.66 and 12,912,072.84

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Solution

The fourth proportional to 21,615,598.98, 29,824,647.66 and 12,912,072.84 is: 17,815,746.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615,598.98 : 29,824,647.66 = 12,912,072.84 : x
  2. Step 2: Convert to fraction form
    21,615,598.98/29,824,647.66 = 12,912,072.84/x
  3. Step 3: Cross multiply
    21,615,598.98x = 29,824,647.66 × 12,912,072.84
  4. Step 4: Simplify right side
    21,615,598.98x = 385,098,023,013,255.56
  5. Step 5: Solve for x
    x = 385,098,023,013,255.56/21,615,598.98
  6. Step 6: Final answer
    x = 17,815,746.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.