Home / 20,594,831.14-28,420,866.96-11,428,948.90

Finding the Fourth Proportional to 20,594,831.14, 28,420,866.96 and 11,428,948.90

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Solution

The fourth proportional to 20,594,831.14, 28,420,866.96 and 11,428,948.90 is: 15,771,949.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594,831.14 : 28,420,866.96 = 11,428,948.90 : x
  2. Step 2: Convert to fraction form
    20,594,831.14/28,420,866.96 = 11,428,948.90/x
  3. Step 3: Cross multiply
    20,594,831.14x = 28,420,866.96 × 11,428,948.90
  4. Step 4: Simplify right side
    20,594,831.14x = 324,820,636,179,538.38
  5. Step 5: Solve for x
    x = 324,820,636,179,538.38/20,594,831.14
  6. Step 6: Final answer
    x = 15,771,949.47

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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.