Home / 21,082,679.10-31,554,034.65-15,308,999.10

Finding the Fourth Proportional to 21,082,679.10, 31,554,034.65 and 15,308,999.10

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Solution

The fourth proportional to 21,082,679.10, 31,554,034.65 and 15,308,999.10 is: 22,912,680.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,082,679.10 : 31,554,034.65 = 15,308,999.10 : x
  2. Step 2: Convert to fraction form
    21,082,679.10/31,554,034.65 = 15,308,999.10/x
  3. Step 3: Cross multiply
    21,082,679.10x = 31,554,034.65 × 15,308,999.10
  4. Step 4: Simplify right side
    21,082,679.10x = 483,060,688,058,218.75
  5. Step 5: Solve for x
    x = 483,060,688,058,218.75/21,082,679.10
  6. Step 6: Final answer
    x = 22,912,680.39

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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.