Home / 172,788,831.86-259,367,686.16-74,469,060.32

Finding the Fourth Proportional to 172,788,831.86, 259,367,686.16 and 74,469,060.32

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Solution

The fourth proportional to 172,788,831.86, 259,367,686.16 and 74,469,060.32 is: 111,783,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,788,831.86 : 259,367,686.16 = 74,469,060.32 : x
  2. Step 2: Convert to fraction form
    172,788,831.86/259,367,686.16 = 74,469,060.32/x
  3. Step 3: Cross multiply
    172,788,831.86x = 259,367,686.16 × 74,469,060.32
  4. Step 4: Simplify right side
    172,788,831.86x = 19,314,867,864,038,684
  5. Step 5: Solve for x
    x = 19,314,867,864,038,684/172,788,831.86
  6. Step 6: Final answer
    x = 111,783,080.29

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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.