Home / 21,519,586,631.29-29,707,781,007.28-13,384,012,367.38

Finding the Fourth Proportional to 21,519,586,631.29, 29,707,781,007.28 and 13,384,012,367.38

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Solution

The fourth proportional to 21,519,586,631.29, 29,707,781,007.28 and 13,384,012,367.38 is: 18,476,623,887.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,519,586,631.29 : 29,707,781,007.28 = 13,384,012,367.38 : x
  2. Step 2: Convert to fraction form
    21,519,586,631.29/29,707,781,007.28 = 13,384,012,367.38/x
  3. Step 3: Cross multiply
    21,519,586,631.29x = 29,707,781,007.28 × 13,384,012,367.38
  4. Step 4: Simplify right side
    21,519,586,631.29x = 397,609,308,408,852,185,088
  5. Step 5: Solve for x
    x = 397,609,308,408,852,185,088/21,519,586,631.29
  6. Step 6: Final answer
    x = 18,476,623,887.87

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1.5x scale

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.