Home / 13,698,329.44-18,903,647.28-7,897,083.52

Finding the Fourth Proportional to 13,698,329.44, 18,903,647.28 and 7,897,083.52

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Solution

The fourth proportional to 13,698,329.44, 18,903,647.28 and 7,897,083.52 is: 10,897,947.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698,329.44 : 18,903,647.28 = 7,897,083.52 : x
  2. Step 2: Convert to fraction form
    13,698,329.44/18,903,647.28 = 7,897,083.52/x
  3. Step 3: Cross multiply
    13,698,329.44x = 18,903,647.28 × 7,897,083.52
  4. Step 4: Simplify right side
    13,698,329.44x = 149,283,681,402,780.81
  5. Step 5: Solve for x
    x = 149,283,681,402,780.81/13,698,329.44
  6. Step 6: Final answer
    x = 10,897,947.96

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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.