Home / 21,138,430.16-29,171,182.92-11,480,638.16

Finding the Fourth Proportional to 21,138,430.16, 29,171,182.92 and 11,480,638.16

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Solution

The fourth proportional to 21,138,430.16, 29,171,182.92 and 11,480,638.16 is: 15,843,361.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,138,430.16 : 29,171,182.92 = 11,480,638.16 : x
  2. Step 2: Convert to fraction form
    21,138,430.16/29,171,182.92 = 11,480,638.16/x
  3. Step 3: Cross multiply
    21,138,430.16x = 29,171,182.92 × 11,480,638.16
  4. Step 4: Simplify right side
    21,138,430.16x = 334,903,795,803,692.25
  5. Step 5: Solve for x
    x = 334,903,795,803,692.25/21,138,430.16
  6. Step 6: Final answer
    x = 15,843,361.75

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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.