Home / 12,574,459.81-18,848,260.89-7,171,476.31

Finding the Fourth Proportional to 12,574,459.81, 18,848,260.89 and 7,171,476.31

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Solution

The fourth proportional to 12,574,459.81, 18,848,260.89 and 7,171,476.31 is: 10,749,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574,459.81 : 18,848,260.89 = 7,171,476.31 : x
  2. Step 2: Convert to fraction form
    12,574,459.81/18,848,260.89 = 7,171,476.31/x
  3. Step 3: Cross multiply
    12,574,459.81x = 18,848,260.89 × 7,171,476.31
  4. Step 4: Simplify right side
    12,574,459.81x = 135,169,856,457,334.52
  5. Step 5: Solve for x
    x = 135,169,856,457,334.52/12,574,459.81
  6. Step 6: Final answer
    x = 10,749,555.73

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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.