Home / 21,871,840.80-32,807,761.20-9,117,256.80

Finding the Fourth Proportional to 21,871,840.80, 32,807,761.20 and 9,117,256.80

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Solution

The fourth proportional to 21,871,840.80, 32,807,761.20 and 9,117,256.80 is: 13,675,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,871,840.80 : 32,807,761.20 = 9,117,256.80 : x
  2. Step 2: Convert to fraction form
    21,871,840.80/32,807,761.20 = 9,117,256.80/x
  3. Step 3: Cross multiply
    21,871,840.80x = 32,807,761.20 × 9,117,256.80
  4. Step 4: Simplify right side
    21,871,840.80x = 299,116,783,893,476.19
  5. Step 5: Solve for x
    x = 299,116,783,893,476.19/21,871,840.80
  6. Step 6: Final answer
    x = 13,675,885.20

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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.