Home / 13,005,434.59-17,947,493.49-7,778,442.66

Finding the Fourth Proportional to 13,005,434.59, 17,947,493.49 and 7,778,442.66

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Solution

The fourth proportional to 13,005,434.59, 17,947,493.49 and 7,778,442.66 is: 10,734,247.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005,434.59 : 17,947,493.49 = 7,778,442.66 : x
  2. Step 2: Convert to fraction form
    13,005,434.59/17,947,493.49 = 7,778,442.66/x
  3. Step 3: Cross multiply
    13,005,434.59x = 17,947,493.49 × 7,778,442.66
  4. Step 4: Simplify right side
    13,005,434.59x = 139,603,549,002,688.27
  5. Step 5: Solve for x
    x = 139,603,549,002,688.27/13,005,434.59
  6. Step 6: Final answer
    x = 10,734,247.14

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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.