Home / 11,969,496.78-16,518,313.17-7,078,911.18

Finding the Fourth Proportional to 11,969,496.78, 16,518,313.17 and 7,078,911.18

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Solution

The fourth proportional to 11,969,496.78, 16,518,313.17 and 7,078,911.18 is: 9,769,138.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,969,496.78 : 16,518,313.17 = 7,078,911.18 : x
  2. Step 2: Convert to fraction form
    11,969,496.78/16,518,313.17 = 7,078,911.18/x
  3. Step 3: Cross multiply
    11,969,496.78x = 16,518,313.17 × 7,078,911.18
  4. Step 4: Simplify right side
    11,969,496.78x = 116,931,671,773,854.23
  5. Step 5: Solve for x
    x = 116,931,671,773,854.23/11,969,496.78
  6. Step 6: Final answer
    x = 9,769,138.50

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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.