Home / 28,420,965.40-42,631,448.10-26,517,400.60

Finding the Fourth Proportional to 28,420,965.40, 42,631,448.10 and 26,517,400.60

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Solution

The fourth proportional to 28,420,965.40, 42,631,448.10 and 26,517,400.60 is: 39,776,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,965.40 : 42,631,448.10 = 26,517,400.60 : x
  2. Step 2: Convert to fraction form
    28,420,965.40/42,631,448.10 = 26,517,400.60/x
  3. Step 3: Cross multiply
    28,420,965.40x = 42,631,448.10 × 26,517,400.60
  4. Step 4: Simplify right side
    28,420,965.40x = 1,130,475,187,425,809
  5. Step 5: Solve for x
    x = 1,130,475,187,425,809/28,420,965.40
  6. Step 6: Final answer
    x = 39,776,100.90

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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.