Home / 208,521,019.80-312,930,828.90-87,439,368.60

Finding the Fourth Proportional to 208,521,019.80, 312,930,828.90 and 87,439,368.60

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Solution

The fourth proportional to 208,521,019.80, 312,930,828.90 and 87,439,368.60 is: 131,221,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,521,019.80 : 312,930,828.90 = 87,439,368.60 : x
  2. Step 2: Convert to fraction form
    208,521,019.80/312,930,828.90 = 87,439,368.60/x
  3. Step 3: Cross multiply
    208,521,019.80x = 312,930,828.90 × 87,439,368.60
  4. Step 4: Simplify right side
    208,521,019.80x = 27,362,474,094,490,628
  5. Step 5: Solve for x
    x = 27,362,474,094,490,628/208,521,019.80
  6. Step 6: Final answer
    x = 131,221,658.71

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