Home / 142,088,945.40-213,133,418.10-80,866,942.20

Finding the Fourth Proportional to 142,088,945.40, 213,133,418.10 and 80,866,942.20

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Solution

The fourth proportional to 142,088,945.40, 213,133,418.10 and 80,866,942.20 is: 121,300,413.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,088,945.40 : 213,133,418.10 = 80,866,942.20 : x
  2. Step 2: Convert to fraction form
    142,088,945.40/213,133,418.10 = 80,866,942.20/x
  3. Step 3: Cross multiply
    142,088,945.40x = 213,133,418.10 × 80,866,942.20
  4. Step 4: Simplify right side
    142,088,945.40x = 17,235,447,802,381,134
  5. Step 5: Solve for x
    x = 17,235,447,802,381,134/142,088,945.40
  6. Step 6: Final answer
    x = 121,300,413.30

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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.