Home / 21,018,302.72-29,005,579.68-12,314,392.64

Finding the Fourth Proportional to 21,018,302.72, 29,005,579.68 and 12,314,392.64

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Solution

The fourth proportional to 21,018,302.72, 29,005,579.68 and 12,314,392.64 is: 16,994,050.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,302.72 : 29,005,579.68 = 12,314,392.64 : x
  2. Step 2: Convert to fraction form
    21,018,302.72/29,005,579.68 = 12,314,392.64/x
  3. Step 3: Cross multiply
    21,018,302.72x = 29,005,579.68 × 12,314,392.64
  4. Step 4: Simplify right side
    21,018,302.72x = 357,186,096,930,325.56
  5. Step 5: Solve for x
    x = 357,186,096,930,325.56/21,018,302.72
  6. Step 6: Final answer
    x = 16,994,050.46

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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.