Home / 20,255,943.02-30,385,266.37-7,123,785.32

Finding the Fourth Proportional to 20,255,943.02, 30,385,266.37 and 7,123,785.32

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Solution

The fourth proportional to 20,255,943.02, 30,385,266.37 and 7,123,785.32 is: 10,686,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255,943.02 : 30,385,266.37 = 7,123,785.32 : x
  2. Step 2: Convert to fraction form
    20,255,943.02/30,385,266.37 = 7,123,785.32/x
  3. Step 3: Cross multiply
    20,255,943.02x = 30,385,266.37 × 7,123,785.32
  4. Step 4: Simplify right side
    20,255,943.02x = 216,458,114,418,171.47
  5. Step 5: Solve for x
    x = 216,458,114,418,171.47/20,255,943.02
  6. Step 6: Final answer
    x = 10,686,153.40

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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.