Home / 21,385,811.20-32,078,716.80-9,871,256.20

Finding the Fourth Proportional to 21,385,811.20, 32,078,716.80 and 9,871,256.20

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Solution

The fourth proportional to 21,385,811.20, 32,078,716.80 and 9,871,256.20 is: 14,806,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385,811.20 : 32,078,716.80 = 9,871,256.20 : x
  2. Step 2: Convert to fraction form
    21,385,811.20/32,078,716.80 = 9,871,256.20/x
  3. Step 3: Cross multiply
    21,385,811.20x = 32,078,716.80 × 9,871,256.20
  4. Step 4: Simplify right side
    21,385,811.20x = 316,657,232,100,044.12
  5. Step 5: Solve for x
    x = 316,657,232,100,044.12/21,385,811.20
  6. Step 6: Final answer
    x = 14,806,884.30

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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.