Home / 280,155,238.46-420,870,586.88-202,671,140.66

Finding the Fourth Proportional to 280,155,238.46, 420,870,586.88 and 202,671,140.66

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Solution

The fourth proportional to 280,155,238.46, 420,870,586.88 and 202,671,140.66 is: 304,468,059.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,155,238.46 : 420,870,586.88 = 202,671,140.66 : x
  2. Step 2: Convert to fraction form
    280,155,238.46/420,870,586.88 = 202,671,140.66/x
  3. Step 3: Cross multiply
    280,155,238.46x = 420,870,586.88 × 202,671,140.66
  4. Step 4: Simplify right side
    280,155,238.46x = 85,298,321,913,213,232
  5. Step 5: Solve for x
    x = 85,298,321,913,213,232/280,155,238.46
  6. Step 6: Final answer
    x = 304,468,059.86

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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.