Home / 21,116,980.97-29,141,433.74-11,459,188.97

Finding the Fourth Proportional to 21,116,980.97, 29,141,433.74 and 11,459,188.97

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Solution

The fourth proportional to 21,116,980.97, 29,141,433.74 and 11,459,188.97 is: 15,813,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,116,980.97 : 29,141,433.74 = 11,459,188.97 : x
  2. Step 2: Convert to fraction form
    21,116,980.97/29,141,433.74 = 11,459,188.97/x
  3. Step 3: Cross multiply
    21,116,980.97x = 29,141,433.74 × 11,459,188.97
  4. Step 4: Simplify right side
    21,116,980.97x = 333,937,196,011,157.12
  5. Step 5: Solve for x
    x = 333,937,196,011,157.12/21,116,980.97
  6. Step 6: Final answer
    x = 15,813,680.78

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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.