Home / 12,769,012,947.86-17,621,773,204.82-7,343,552,791.68

Finding the Fourth Proportional to 12,769,012,947.86, 17,621,773,204.82 and 7,343,552,791.68

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Solution

The fourth proportional to 12,769,012,947.86, 17,621,773,204.82 and 7,343,552,791.68 is: 10,134,410,728.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769,012,947.86 : 17,621,773,204.82 = 7,343,552,791.68 : x
  2. Step 2: Convert to fraction form
    12,769,012,947.86/17,621,773,204.82 = 7,343,552,791.68/x
  3. Step 3: Cross multiply
    12,769,012,947.86x = 17,621,773,204.82 × 7,343,552,791.68
  4. Step 4: Simplify right side
    12,769,012,947.86x = 129,406,421,812,507,574,272
  5. Step 5: Solve for x
    x = 129,406,421,812,507,574,272/12,769,012,947.86
  6. Step 6: Final answer
    x = 10,134,410,728.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.