Home / 2,145,496,970.12-2,961,031,015.87-1,192,972,679.57

Finding the Fourth Proportional to 2,145,496,970.12, 2,961,031,015.87 and 1,192,972,679.57

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Solution

The fourth proportional to 2,145,496,970.12, 2,961,031,015.87 and 1,192,972,679.57 is: 1,646,438,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,496,970.12 : 2,961,031,015.87 = 1,192,972,679.57 : x
  2. Step 2: Convert to fraction form
    2,145,496,970.12/2,961,031,015.87 = 1,192,972,679.57/x
  3. Step 3: Cross multiply
    2,145,496,970.12x = 2,961,031,015.87 × 1,192,972,679.57
  4. Step 4: Simplify right side
    2,145,496,970.12x = 3,532,429,105,296,613,888
  5. Step 5: Solve for x
    x = 3,532,429,105,296,613,888/2,145,496,970.12
  6. Step 6: Final answer
    x = 1,646,438,636.13

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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.