Home / 21,290,285.08-29,380,619.49-11,500,729.40

Finding the Fourth Proportional to 21,290,285.08, 29,380,619.49 and 11,500,729.40

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Solution

The fourth proportional to 21,290,285.08, 29,380,619.49 and 11,500,729.40 is: 15,871,020.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,285.08 : 29,380,619.49 = 11,500,729.40 : x
  2. Step 2: Convert to fraction form
    21,290,285.08/29,380,619.49 = 11,500,729.40/x
  3. Step 3: Cross multiply
    21,290,285.08x = 29,380,619.49 × 11,500,729.40
  4. Step 4: Simplify right side
    21,290,285.08x = 337,898,554,404,477.31
  5. Step 5: Solve for x
    x = 337,898,554,404,477.31/21,290,285.08
  6. Step 6: Final answer
    x = 15,871,020.67

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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.