Home / 13,930,778.98-19,223,420.34-7,818,026.50

Finding the Fourth Proportional to 13,930,778.98, 19,223,420.34 and 7,818,026.50

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Solution

The fourth proportional to 13,930,778.98, 19,223,420.34 and 7,818,026.50 is: 10,788,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930,778.98 : 19,223,420.34 = 7,818,026.50 : x
  2. Step 2: Convert to fraction form
    13,930,778.98/19,223,420.34 = 7,818,026.50/x
  3. Step 3: Cross multiply
    13,930,778.98x = 19,223,420.34 × 7,818,026.50
  4. Step 4: Simplify right side
    13,930,778.98x = 150,289,209,638,759
  5. Step 5: Solve for x
    x = 150,289,209,638,759/13,930,778.98
  6. Step 6: Final answer
    x = 10,788,284.69

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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.