Home / 142,189,362.12-213,292,014.75-39,945,428.22

Finding the Fourth Proportional to 142,189,362.12, 213,292,014.75 and 39,945,428.22

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Solution

The fourth proportional to 142,189,362.12, 213,292,014.75 and 39,945,428.22 is: 59,920,381.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,189,362.12 : 213,292,014.75 = 39,945,428.22 : x
  2. Step 2: Convert to fraction form
    142,189,362.12/213,292,014.75 = 39,945,428.22/x
  3. Step 3: Cross multiply
    142,189,362.12x = 213,292,014.75 × 39,945,428.22
  4. Step 4: Simplify right side
    142,189,362.12x = 8,520,040,865,095,306
  5. Step 5: Solve for x
    x = 8,520,040,865,095,306/142,189,362.12
  6. Step 6: Final answer
    x = 59,920,381.79

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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.