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Finding the Fourth Proportional to 137,720,008.45, 206,580,012.68 and 137,720,008.45

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Solution

The fourth proportional to 137,720,008.45, 206,580,012.68 and 137,720,008.45 is: 206,580,012.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,720,008.45 : 206,580,012.68 = 137,720,008.45 : x
  2. Step 2: Convert to fraction form
    137,720,008.45/206,580,012.68 = 137,720,008.45/x
  3. Step 3: Cross multiply
    137,720,008.45x = 206,580,012.68 × 137,720,008.45
  4. Step 4: Simplify right side
    137,720,008.45x = 28,450,201,091,890,704
  5. Step 5: Solve for x
    x = 28,450,201,091,890,704/137,720,008.45
  6. Step 6: Final answer
    x = 206,580,012.68

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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.