Home / 11,728,879.16-16,185,831.90-7,145,200.40

Finding the Fourth Proportional to 11,728,879.16, 16,185,831.90 and 7,145,200.40

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Solution

The fourth proportional to 11,728,879.16, 16,185,831.90 and 7,145,200.40 is: 9,860,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728,879.16 : 16,185,831.90 = 7,145,200.40 : x
  2. Step 2: Convert to fraction form
    11,728,879.16/16,185,831.90 = 7,145,200.40/x
  3. Step 3: Cross multiply
    11,728,879.16x = 16,185,831.90 × 7,145,200.40
  4. Step 4: Simplify right side
    11,728,879.16x = 115,651,012,566,212.77
  5. Step 5: Solve for x
    x = 115,651,012,566,212.77/11,728,879.16
  6. Step 6: Final answer
    x = 9,860,363.55

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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.