Home / 21,615,316.34-29,824,252.89-12,911,785.34

Finding the Fourth Proportional to 21,615,316.34, 29,824,252.89 and 12,911,785.34

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Solution

The fourth proportional to 21,615,316.34, 29,824,252.89 and 12,911,785.34 is: 17,815,346.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615,316.34 : 29,824,252.89 = 12,911,785.34 : x
  2. Step 2: Convert to fraction form
    21,615,316.34/29,824,252.89 = 12,911,785.34/x
  3. Step 3: Cross multiply
    21,615,316.34x = 29,824,252.89 × 12,911,785.34
  4. Step 4: Simplify right side
    21,615,316.34x = 385,084,351,241,554.62
  5. Step 5: Solve for x
    x = 385,084,351,241,554.62/21,615,316.34
  6. Step 6: Final answer
    x = 17,815,346.54

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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.