Home / 13,005,445.22-17,947,508.13-7,778,453.27

Finding the Fourth Proportional to 13,005,445.22, 17,947,508.13 and 7,778,453.27

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Solution

The fourth proportional to 13,005,445.22, 17,947,508.13 and 7,778,453.27 is: 10,734,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005,445.22 : 17,947,508.13 = 7,778,453.27 : x
  2. Step 2: Convert to fraction form
    13,005,445.22/17,947,508.13 = 7,778,453.27/x
  3. Step 3: Cross multiply
    13,005,445.22x = 17,947,508.13 × 7,778,453.27
  4. Step 4: Simplify right side
    13,005,445.22x = 139,603,853,302,150.06
  5. Step 5: Solve for x
    x = 139,603,853,302,150.06/13,005,445.22
  6. Step 6: Final answer
    x = 10,734,261.76

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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.