Home / 22,767,845.18-31,420,371.02-12,978,111.47

Finding the Fourth Proportional to 22,767,845.18, 31,420,371.02 and 12,978,111.47

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Solution

The fourth proportional to 22,767,845.18, 31,420,371.02 and 12,978,111.47 is: 17,910,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,767,845.18 : 31,420,371.02 = 12,978,111.47 : x
  2. Step 2: Convert to fraction form
    22,767,845.18/31,420,371.02 = 12,978,111.47/x
  3. Step 3: Cross multiply
    22,767,845.18x = 31,420,371.02 × 12,978,111.47
  4. Step 4: Simplify right side
    22,767,845.18x = 407,777,077,304,325.19
  5. Step 5: Solve for x
    x = 407,777,077,304,325.19/22,767,845.18
  6. Step 6: Final answer
    x = 17,910,218.30

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1.5x scale

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.