Home / 19,721,703.69-27,215,428.98-11,019,947.82

Finding the Fourth Proportional to 19,721,703.69, 27,215,428.98 and 11,019,947.82

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Solution

The fourth proportional to 19,721,703.69, 27,215,428.98 and 11,019,947.82 is: 15,207,236.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721,703.69 : 27,215,428.98 = 11,019,947.82 : x
  2. Step 2: Convert to fraction form
    19,721,703.69/27,215,428.98 = 11,019,947.82/x
  3. Step 3: Cross multiply
    19,721,703.69x = 27,215,428.98 × 11,019,947.82
  4. Step 4: Simplify right side
    19,721,703.69x = 299,912,607,258,515.81
  5. Step 5: Solve for x
    x = 299,912,607,258,515.81/19,721,703.69
  6. Step 6: Final answer
    x = 15,207,236.25

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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.