Home / 21,117,140-29,141,653.20-11,459,348

Finding the Fourth Proportional to 21,117,140, 29,141,653.20 and 11,459,348

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Solution

The fourth proportional to 21,117,140, 29,141,653.20 and 11,459,348 is: 15,813,900.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,117,140 : 29,141,653.20 = 11,459,348 : x
  2. Step 2: Convert to fraction form
    21,117,140/29,141,653.20 = 11,459,348/x
  3. Step 3: Cross multiply
    21,117,140x = 29,141,653.20 × 11,459,348
  4. Step 4: Simplify right side
    21,117,140x = 333,944,345,314,113.56
  5. Step 5: Solve for x
    x = 333,944,345,314,113.56/21,117,140
  6. Step 6: Final answer
    x = 15,813,900.24

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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.