Home / 12,857,129.70-19,272,086.55-4,764,905.70

Finding the Fourth Proportional to 12,857,129.70, 19,272,086.55 and 4,764,905.70

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Solution

The fourth proportional to 12,857,129.70, 19,272,086.55 and 4,764,905.70 is: 7,142,315.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857,129.70 : 19,272,086.55 = 4,764,905.70 : x
  2. Step 2: Convert to fraction form
    12,857,129.70/19,272,086.55 = 4,764,905.70/x
  3. Step 3: Cross multiply
    12,857,129.70x = 19,272,086.55 × 4,764,905.70
  4. Step 4: Simplify right side
    12,857,129.70x = 91,829,675,052,988.34
  5. Step 5: Solve for x
    x = 91,829,675,052,988.34/12,857,129.70
  6. Step 6: Final answer
    x = 7,142,315.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.