Home / 13,231,805.80-19,847,708.70-13,119,831.40

Finding the Fourth Proportional to 13,231,805.80, 19,847,708.70 and 13,119,831.40

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Solution

The fourth proportional to 13,231,805.80, 19,847,708.70 and 13,119,831.40 is: 19,679,747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231,805.80 : 19,847,708.70 = 13,119,831.40 : x
  2. Step 2: Convert to fraction form
    13,231,805.80/19,847,708.70 = 13,119,831.40/x
  3. Step 3: Cross multiply
    13,231,805.80x = 19,847,708.70 × 13,119,831.40
  4. Step 4: Simplify right side
    13,231,805.80x = 260,398,591,820,313.19
  5. Step 5: Solve for x
    x = 260,398,591,820,313.19/13,231,805.80
  6. Step 6: Final answer
    x = 19,679,747.10

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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.