Home / 13,702,240.40-18,906,688.44-7,819,188.53

Finding the Fourth Proportional to 13,702,240.40, 18,906,688.44 and 7,819,188.53

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Solution

The fourth proportional to 13,702,240.40, 18,906,688.44 and 7,819,188.53 is: 10,789,108.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702,240.40 : 18,906,688.44 = 7,819,188.53 : x
  2. Step 2: Convert to fraction form
    13,702,240.40/18,906,688.44 = 7,819,188.53/x
  3. Step 3: Cross multiply
    13,702,240.40x = 18,906,688.44 × 7,819,188.53
  4. Step 4: Simplify right side
    13,702,240.40x = 147,834,961,295,798.16
  5. Step 5: Solve for x
    x = 147,834,961,295,798.16/13,702,240.40
  6. Step 6: Final answer
    x = 10,789,108.72

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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.