Home / 20,368,907.48-28,109,831.32-11,668,761.47

Finding the Fourth Proportional to 20,368,907.48, 28,109,831.32 and 11,668,761.47

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Solution

The fourth proportional to 20,368,907.48, 28,109,831.32 and 11,668,761.47 is: 16,103,314.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,907.48 : 28,109,831.32 = 11,668,761.47 : x
  2. Step 2: Convert to fraction form
    20,368,907.48/28,109,831.32 = 11,668,761.47/x
  3. Step 3: Cross multiply
    20,368,907.48x = 28,109,831.32 × 11,668,761.47
  4. Step 4: Simplify right side
    20,368,907.48x = 328,006,916,635,015.25
  5. Step 5: Solve for x
    x = 328,006,916,635,015.25/20,368,907.48
  6. Step 6: Final answer
    x = 16,103,314.18

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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.