Home / 20,843,384.80-31,293,070.80-13,303,775.20

Finding the Fourth Proportional to 20,843,384.80, 31,293,070.80 and 13,303,775.20

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Solution

The fourth proportional to 20,843,384.80, 31,293,070.80 and 13,303,775.20 is: 19,973,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843,384.80 : 31,293,070.80 = 13,303,775.20 : x
  2. Step 2: Convert to fraction form
    20,843,384.80/31,293,070.80 = 13,303,775.20/x
  3. Step 3: Cross multiply
    20,843,384.80x = 31,293,070.80 × 13,303,775.20
  4. Step 4: Simplify right side
    20,843,384.80x = 416,315,979,240,884.12
  5. Step 5: Solve for x
    x = 416,315,979,240,884.12/20,843,384.80
  6. Step 6: Final answer
    x = 19,973,530.37

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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.