Home / 20,248,431.10-30,372,646.65-5,102,362.60

Finding the Fourth Proportional to 20,248,431.10, 30,372,646.65 and 5,102,362.60

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Solution

The fourth proportional to 20,248,431.10, 30,372,646.65 and 5,102,362.60 is: 7,653,543.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248,431.10 : 30,372,646.65 = 5,102,362.60 : x
  2. Step 2: Convert to fraction form
    20,248,431.10/30,372,646.65 = 5,102,362.60/x
  3. Step 3: Cross multiply
    20,248,431.10x = 30,372,646.65 × 5,102,362.60
  4. Step 4: Simplify right side
    20,248,431.10x = 154,972,256,329,975.28
  5. Step 5: Solve for x
    x = 154,972,256,329,975.28/20,248,431.10
  6. Step 6: Final answer
    x = 7,653,543.90

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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.