Home / 143,850,403.40-215,775,605.10-82,628,400.20

Finding the Fourth Proportional to 143,850,403.40, 215,775,605.10 and 82,628,400.20

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Solution

The fourth proportional to 143,850,403.40, 215,775,605.10 and 82,628,400.20 is: 123,942,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,850,403.40 : 215,775,605.10 = 82,628,400.20 : x
  2. Step 2: Convert to fraction form
    143,850,403.40/215,775,605.10 = 82,628,400.20/x
  3. Step 3: Cross multiply
    143,850,403.40x = 215,775,605.10 × 82,628,400.20
  4. Step 4: Simplify right side
    143,850,403.40x = 17,829,193,051,599,962
  5. Step 5: Solve for x
    x = 17,829,193,051,599,962/143,850,403.40
  6. Step 6: Final answer
    x = 123,942,600.30

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1.5x scale

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.