Home / 12,483,115,212.42-18,721,807,487.10-7,442,397,983.52

Finding the Fourth Proportional to 12,483,115,212.42, 18,721,807,487.10 and 7,442,397,983.52

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Solution

The fourth proportional to 12,483,115,212.42, 18,721,807,487.10 and 7,442,397,983.52 is: 11,161,888,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,483,115,212.42 : 18,721,807,487.10 = 7,442,397,983.52 : x
  2. Step 2: Convert to fraction form
    12,483,115,212.42/18,721,807,487.10 = 7,442,397,983.52/x
  3. Step 3: Cross multiply
    12,483,115,212.42x = 18,721,807,487.10 × 7,442,397,983.52
  4. Step 4: Simplify right side
    12,483,115,212.42x = 139,335,142,289,842,667,520
  5. Step 5: Solve for x
    x = 139,335,142,289,842,667,520/12,483,115,212.42
  6. Step 6: Final answer
    x = 11,161,888,672.73

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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.