Home / 158,477,778.94-218,606,679.44-99,647,303.98

Finding the Fourth Proportional to 158,477,778.94, 218,606,679.44 and 99,647,303.98

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Solution

The fourth proportional to 158,477,778.94, 218,606,679.44 and 99,647,303.98 is: 137,455,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,477,778.94 : 218,606,679.44 = 99,647,303.98 : x
  2. Step 2: Convert to fraction form
    158,477,778.94/218,606,679.44 = 99,647,303.98/x
  3. Step 3: Cross multiply
    158,477,778.94x = 218,606,679.44 × 99,647,303.98
  4. Step 4: Simplify right side
    158,477,778.94x = 21,783,566,237,545,020
  5. Step 5: Solve for x
    x = 21,783,566,237,545,020/158,477,778.94
  6. Step 6: Final answer
    x = 137,455,019.77

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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.