Home / 15,385,938.54-21,233,119.76-8,771,505.13

Finding the Fourth Proportional to 15,385,938.54, 21,233,119.76 and 8,771,505.13

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Solution

The fourth proportional to 15,385,938.54, 21,233,119.76 and 8,771,505.13 is: 12,104,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385,938.54 : 21,233,119.76 = 8,771,505.13 : x
  2. Step 2: Convert to fraction form
    15,385,938.54/21,233,119.76 = 8,771,505.13/x
  3. Step 3: Cross multiply
    15,385,938.54x = 21,233,119.76 × 8,771,505.13
  4. Step 4: Simplify right side
    15,385,938.54x = 186,246,418,900,744.41
  5. Step 5: Solve for x
    x = 186,246,418,900,744.41/15,385,938.54
  6. Step 6: Final answer
    x = 12,104,976.14

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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.