Home / 21,094,519.11-31,799,886.34-19,688,354.25

Finding the Fourth Proportional to 21,094,519.11, 31,799,886.34 and 19,688,354.25

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Solution

The fourth proportional to 21,094,519.11, 31,799,886.34 and 19,688,354.25 is: 29,680,099.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,094,519.11 : 31,799,886.34 = 19,688,354.25 : x
  2. Step 2: Convert to fraction form
    21,094,519.11/31,799,886.34 = 19,688,354.25/x
  3. Step 3: Cross multiply
    21,094,519.11x = 31,799,886.34 × 19,688,354.25
  4. Step 4: Simplify right side
    21,094,519.11x = 626,087,427,418,995.12
  5. Step 5: Solve for x
    x = 626,087,427,418,995.12/21,094,519.11
  6. Step 6: Final answer
    x = 29,680,099.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.