Home / 21,220,064.51-29,283,689.30-11,562,272.51

Finding the Fourth Proportional to 21,220,064.51, 29,283,689.30 and 11,562,272.51

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Solution

The fourth proportional to 21,220,064.51, 29,283,689.30 and 11,562,272.51 is: 15,955,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,220,064.51 : 29,283,689.30 = 11,562,272.51 : x
  2. Step 2: Convert to fraction form
    21,220,064.51/29,283,689.30 = 11,562,272.51/x
  3. Step 3: Cross multiply
    21,220,064.51x = 29,283,689.30 × 11,562,272.51
  4. Step 4: Simplify right side
    21,220,064.51x = 338,585,995,580,541.38
  5. Step 5: Solve for x
    x = 338,585,995,580,541.38/21,220,064.51
  6. Step 6: Final answer
    x = 15,955,936.21

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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.