Home / 143,544,977.70-215,317,466.55-66,875,756.10

Finding the Fourth Proportional to 143,544,977.70, 215,317,466.55 and 66,875,756.10

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Solution

The fourth proportional to 143,544,977.70, 215,317,466.55 and 66,875,756.10 is: 100,313,634.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,544,977.70 : 215,317,466.55 = 66,875,756.10 : x
  2. Step 2: Convert to fraction form
    143,544,977.70/215,317,466.55 = 66,875,756.10/x
  3. Step 3: Cross multiply
    143,544,977.70x = 215,317,466.55 × 66,875,756.10
  4. Step 4: Simplify right side
    143,544,977.70x = 14,399,518,377,067,710
  5. Step 5: Solve for x
    x = 14,399,518,377,067,710/143,544,977.70
  6. Step 6: Final answer
    x = 100,313,634.15

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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.