Home / 12,671,670.78-17,486,800.16-7,166,126.57

Finding the Fourth Proportional to 12,671,670.78, 17,486,800.16 and 7,166,126.57

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Solution

The fourth proportional to 12,671,670.78, 17,486,800.16 and 7,166,126.57 is: 9,889,194.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,670.78 : 17,486,800.16 = 7,166,126.57 : x
  2. Step 2: Convert to fraction form
    12,671,670.78/17,486,800.16 = 7,166,126.57/x
  3. Step 3: Cross multiply
    12,671,670.78x = 17,486,800.16 × 7,166,126.57
  4. Step 4: Simplify right side
    12,671,670.78x = 125,312,623,127,591.64
  5. Step 5: Solve for x
    x = 125,312,623,127,591.64/12,671,670.78
  6. Step 6: Final answer
    x = 9,889,194.98

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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.