Home / 12,946,667.67-17,866,313.24-7,145,449.16

Finding the Fourth Proportional to 12,946,667.67, 17,866,313.24 and 7,145,449.16

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Solution

The fourth proportional to 12,946,667.67, 17,866,313.24 and 7,145,449.16 is: 9,860,671.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946,667.67 : 17,866,313.24 = 7,145,449.16 : x
  2. Step 2: Convert to fraction form
    12,946,667.67/17,866,313.24 = 7,145,449.16/x
  3. Step 3: Cross multiply
    12,946,667.67x = 17,866,313.24 × 7,145,449.16
  4. Step 4: Simplify right side
    12,946,667.67x = 127,662,832,807,996.06
  5. Step 5: Solve for x
    x = 127,662,832,807,996.06/12,946,667.67
  6. Step 6: Final answer
    x = 9,860,671.18

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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.