Home / 21,009,387.84-28,992,955.28-11,351,595.84

Finding the Fourth Proportional to 21,009,387.84, 28,992,955.28 and 11,351,595.84

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Solution

The fourth proportional to 21,009,387.84, 28,992,955.28 and 11,351,595.84 is: 15,665,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,009,387.84 : 28,992,955.28 = 11,351,595.84 : x
  2. Step 2: Convert to fraction form
    21,009,387.84/28,992,955.28 = 11,351,595.84/x
  3. Step 3: Cross multiply
    21,009,387.84x = 28,992,955.28 × 11,351,595.84
  4. Step 4: Simplify right side
    21,009,387.84x = 329,116,310,488,996.06
  5. Step 5: Solve for x
    x = 329,116,310,488,996.06/21,009,387.84
  6. Step 6: Final answer
    x = 15,665,202.29

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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.