Home / 139,000,831.12-191,824,076.77-76,276,380.45

Finding the Fourth Proportional to 139,000,831.12, 191,824,076.77 and 76,276,380.45

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Solution

The fourth proportional to 139,000,831.12, 191,824,076.77 and 76,276,380.45 is: 105,263,012.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,000,831.12 : 191,824,076.77 = 76,276,380.45 : x
  2. Step 2: Convert to fraction form
    139,000,831.12/191,824,076.77 = 76,276,380.45/x
  3. Step 3: Cross multiply
    139,000,831.12x = 191,824,076.77 × 76,276,380.45
  4. Step 4: Simplify right side
    139,000,831.12x = 14,631,646,259,492,596
  5. Step 5: Solve for x
    x = 14,631,646,259,492,596/139,000,831.12
  6. Step 6: Final answer
    x = 105,263,012.76

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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.