Home / 21,018,767.40-31,551,770.70-16,247,608.20

Finding the Fourth Proportional to 21,018,767.40, 31,551,770.70 and 16,247,608.20

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Solution

The fourth proportional to 21,018,767.40, 31,551,770.70 and 16,247,608.20 is: 24,389,670.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,767.40 : 31,551,770.70 = 16,247,608.20 : x
  2. Step 2: Convert to fraction form
    21,018,767.40/31,551,770.70 = 16,247,608.20/x
  3. Step 3: Cross multiply
    21,018,767.40x = 31,551,770.70 × 16,247,608.20
  4. Step 4: Simplify right side
    21,018,767.40x = 512,640,808,349,839.69
  5. Step 5: Solve for x
    x = 512,640,808,349,839.69/21,018,767.40
  6. Step 6: Final answer
    x = 24,389,670.36

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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.