Home / 280,267,709.04-420,355,918.44-98,472,449.52

Finding the Fourth Proportional to 280,267,709.04, 420,355,918.44 and 98,472,449.52

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Solution

The fourth proportional to 280,267,709.04, 420,355,918.44 and 98,472,449.52 is: 147,692,636.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,267,709.04 : 420,355,918.44 = 98,472,449.52 : x
  2. Step 2: Convert to fraction form
    280,267,709.04/420,355,918.44 = 98,472,449.52/x
  3. Step 3: Cross multiply
    280,267,709.04x = 420,355,918.44 × 98,472,449.52
  4. Step 4: Simplify right side
    280,267,709.04x = 41,393,476,959,016,136
  5. Step 5: Solve for x
    x = 41,393,476,959,016,136/280,267,709.04
  6. Step 6: Final answer
    x = 147,692,636.80

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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.