Home / 21,488,665.42-29,649,760.55-12,785,138.06

Finding the Fourth Proportional to 21,488,665.42, 29,649,760.55 and 12,785,138.06

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Solution

The fourth proportional to 21,488,665.42, 29,649,760.55 and 12,785,138.06 is: 17,640,755.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488,665.42 : 29,649,760.55 = 12,785,138.06 : x
  2. Step 2: Convert to fraction form
    21,488,665.42/29,649,760.55 = 12,785,138.06/x
  3. Step 3: Cross multiply
    21,488,665.42x = 29,649,760.55 × 12,785,138.06
  4. Step 4: Simplify right side
    21,488,665.42x = 379,076,282,116,205.81
  5. Step 5: Solve for x
    x = 379,076,282,116,205.81/21,488,665.42
  6. Step 6: Final answer
    x = 17,640,755.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.