Home / 13,628,853.52-18,807,831.92-7,828,757.39

Finding the Fourth Proportional to 13,628,853.52, 18,807,831.92 and 7,828,757.39

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Solution

The fourth proportional to 13,628,853.52, 18,807,831.92 and 7,828,757.39 is: 10,803,693.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628,853.52 : 18,807,831.92 = 7,828,757.39 : x
  2. Step 2: Convert to fraction form
    13,628,853.52/18,807,831.92 = 7,828,757.39/x
  3. Step 3: Cross multiply
    13,628,853.52x = 18,807,831.92 × 7,828,757.39
  4. Step 4: Simplify right side
    13,628,853.52x = 147,241,953,133,577.91
  5. Step 5: Solve for x
    x = 147,241,953,133,577.91/13,628,853.52
  6. Step 6: Final answer
    x = 10,803,693.28

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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.