Home / 31,090,631.02-42,905,145.30-17,340,480.88

Finding the Fourth Proportional to 31,090,631.02, 42,905,145.30 and 17,340,480.88

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Solution

The fourth proportional to 31,090,631.02, 42,905,145.30 and 17,340,480.88 is: 23,929,905.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,090,631.02 : 42,905,145.30 = 17,340,480.88 : x
  2. Step 2: Convert to fraction form
    31,090,631.02/42,905,145.30 = 17,340,480.88/x
  3. Step 3: Cross multiply
    31,090,631.02x = 42,905,145.30 × 17,340,480.88
  4. Step 4: Simplify right side
    31,090,631.02x = 743,995,851,728,271.75
  5. Step 5: Solve for x
    x = 743,995,851,728,271.75/31,090,631.02
  6. Step 6: Final answer
    x = 23,929,905.16

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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.