Home / 21,116,995.51-29,141,453.80-11,459,203.51

Finding the Fourth Proportional to 21,116,995.51, 29,141,453.80 and 11,459,203.51

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Solution

The fourth proportional to 21,116,995.51, 29,141,453.80 and 11,459,203.51 is: 15,813,700.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,116,995.51 : 29,141,453.80 = 11,459,203.51 : x
  2. Step 2: Convert to fraction form
    21,116,995.51/29,141,453.80 = 11,459,203.51/x
  3. Step 3: Cross multiply
    21,116,995.51x = 29,141,453.80 × 11,459,203.51
  4. Step 4: Simplify right side
    21,116,995.51x = 333,937,849,525,755.62
  5. Step 5: Solve for x
    x = 333,937,849,525,755.62/21,116,995.51
  6. Step 6: Final answer
    x = 15,813,700.84

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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.