Home / 21,117,132-29,141,642.16-11,459,340

Finding the Fourth Proportional to 21,117,132, 29,141,642.16 and 11,459,340

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Solution

The fourth proportional to 21,117,132, 29,141,642.16 and 11,459,340 is: 15,813,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,117,132 : 29,141,642.16 = 11,459,340 : x
  2. Step 2: Convert to fraction form
    21,117,132/29,141,642.16 = 11,459,340/x
  3. Step 3: Cross multiply
    21,117,132x = 29,141,642.16 × 11,459,340
  4. Step 4: Simplify right side
    21,117,132x = 333,943,985,669,774.38
  5. Step 5: Solve for x
    x = 333,943,985,669,774.38/21,117,132
  6. Step 6: Final answer
    x = 15,813,889.20

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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.