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Finding the Third Proportional to 298,888,988 and 656,619,938

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Solution

The third proportional to 298,888,988 and 656,619,938 is: 1,442,507,955.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,888,988 : 656,619,938 = 656,619,938 : x
  2. Step 2: Convert to fraction form
    298,888,988/656,619,938 = 656,619,938/x
  3. Step 3: Cross multiply
    298,888,988x = 656,619,938 × 656,619,938
  4. Step 4: Simplify right side
    298,888,988x = 431,149,742,979,123,840
  5. Step 5: Solve for x
    x = 431,149,742,979,123,840/298,888,988
  6. Step 6: Final answer
    x = 1,442,507,955.43

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.