Home / 143,736,243.40-215,604,365.10-57,431,974.60

Finding the Fourth Proportional to 143,736,243.40, 215,604,365.10 and 57,431,974.60

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Solution

The fourth proportional to 143,736,243.40, 215,604,365.10 and 57,431,974.60 is: 86,147,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,736,243.40 : 215,604,365.10 = 57,431,974.60 : x
  2. Step 2: Convert to fraction form
    143,736,243.40/215,604,365.10 = 57,431,974.60/x
  3. Step 3: Cross multiply
    143,736,243.40x = 215,604,365.10 × 57,431,974.60
  4. Step 4: Simplify right side
    143,736,243.40x = 12,382,584,420,072,326
  5. Step 5: Solve for x
    x = 12,382,584,420,072,326/143,736,243.40
  6. Step 6: Final answer
    x = 86,147,961.90

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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.