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Finding the Fourth Proportional to 139,969,329.80, 209,953,994.70 and 49,060,113.80

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Solution

The fourth proportional to 139,969,329.80, 209,953,994.70 and 49,060,113.80 is: 73,590,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,329.80 : 209,953,994.70 = 49,060,113.80 : x
  2. Step 2: Convert to fraction form
    139,969,329.80/209,953,994.70 = 49,060,113.80/x
  3. Step 3: Cross multiply
    139,969,329.80x = 209,953,994.70 × 49,060,113.80
  4. Step 4: Simplify right side
    139,969,329.80x = 10,300,366,872,746,596
  5. Step 5: Solve for x
    x = 10,300,366,872,746,596/139,969,329.80
  6. Step 6: Final answer
    x = 73,590,170.70

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