Home / 18,703,667.82-28,030,699.50-9,605,397.90

Finding the Fourth Proportional to 18,703,667.82, 28,030,699.50 and 9,605,397.90

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Solution

The fourth proportional to 18,703,667.82, 28,030,699.50 and 9,605,397.90 is: 14,395,359.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703,667.82 : 28,030,699.50 = 9,605,397.90 : x
  2. Step 2: Convert to fraction form
    18,703,667.82/28,030,699.50 = 9,605,397.90/x
  3. Step 3: Cross multiply
    18,703,667.82x = 28,030,699.50 × 9,605,397.90
  4. Step 4: Simplify right side
    18,703,667.82x = 269,246,022,112,831.06
  5. Step 5: Solve for x
    x = 269,246,022,112,831.06/18,703,667.82
  6. Step 6: Final answer
    x = 14,395,359.49

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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.