Home / 143,803,453.12-215,362,781.40-91,827,059.84

Finding the Fourth Proportional to 143,803,453.12, 215,362,781.40 and 91,827,059.84

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Solution

The fourth proportional to 143,803,453.12, 215,362,781.40 and 91,827,059.84 is: 137,521,948.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,803,453.12 : 215,362,781.40 = 91,827,059.84 : x
  2. Step 2: Convert to fraction form
    143,803,453.12/215,362,781.40 = 91,827,059.84/x
  3. Step 3: Cross multiply
    143,803,453.12x = 215,362,781.40 × 91,827,059.84
  4. Step 4: Simplify right side
    143,803,453.12x = 19,776,131,014,926,640
  5. Step 5: Solve for x
    x = 19,776,131,014,926,640/143,803,453.12
  6. Step 6: Final answer
    x = 137,521,948.09

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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.