Home / 280,155,238.33-420,870,586.68-202,671,140.53

Finding the Fourth Proportional to 280,155,238.33, 420,870,586.68 and 202,671,140.53

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Solution

The fourth proportional to 280,155,238.33, 420,870,586.68 and 202,671,140.53 is: 304,468,059.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,155,238.33 : 420,870,586.68 = 202,671,140.53 : x
  2. Step 2: Convert to fraction form
    280,155,238.33/420,870,586.68 = 202,671,140.53/x
  3. Step 3: Cross multiply
    280,155,238.33x = 420,870,586.68 × 202,671,140.53
  4. Step 4: Simplify right side
    280,155,238.33x = 85,298,321,817,965,824
  5. Step 5: Solve for x
    x = 85,298,321,817,965,824/280,155,238.33
  6. Step 6: Final answer
    x = 304,468,059.66

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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.