Home / 12,457,568.40-18,686,352.60-8,152,896.30

Finding the Fourth Proportional to 12,457,568.40, 18,686,352.60 and 8,152,896.30

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Solution

The fourth proportional to 12,457,568.40, 18,686,352.60 and 8,152,896.30 is: 12,229,344.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,568.40 : 18,686,352.60 = 8,152,896.30 : x
  2. Step 2: Convert to fraction form
    12,457,568.40/18,686,352.60 = 8,152,896.30/x
  3. Step 3: Cross multiply
    12,457,568.40x = 18,686,352.60 × 8,152,896.30
  4. Step 4: Simplify right side
    12,457,568.40x = 152,347,894,973,035.38
  5. Step 5: Solve for x
    x = 152,347,894,973,035.38/12,457,568.40
  6. Step 6: Final answer
    x = 12,229,344.45

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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.