Home / 21,192,090,729.18-29,235,895,919.91-12,613,707,282.30

Finding the Fourth Proportional to 21,192,090,729.18, 29,235,895,919.91 and 12,613,707,282.30

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Solution

The fourth proportional to 21,192,090,729.18, 29,235,895,919.91 and 12,613,707,282.30 is: 17,401,446,510.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192,090,729.18 : 29,235,895,919.91 = 12,613,707,282.30 : x
  2. Step 2: Convert to fraction form
    21,192,090,729.18/29,235,895,919.91 = 12,613,707,282.30/x
  3. Step 3: Cross multiply
    21,192,090,729.18x = 29,235,895,919.91 × 12,613,707,282.30
  4. Step 4: Simplify right side
    21,192,090,729.18x = 368,773,033,269,533,605,888
  5. Step 5: Solve for x
    x = 368,773,033,269,533,605,888/21,192,090,729.18
  6. Step 6: Final answer
    x = 17,401,446,510.50

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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.