Home / 447,543,221.40-617,527,658.25-249,299,782.74

Finding the Fourth Proportional to 447,543,221.40, 617,527,658.25 and 249,299,782.74

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Solution

The fourth proportional to 447,543,221.40, 617,527,658.25 and 249,299,782.74 is: 343,988,029.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,543,221.40 : 617,527,658.25 = 249,299,782.74 : x
  2. Step 2: Convert to fraction form
    447,543,221.40/617,527,658.25 = 249,299,782.74/x
  3. Step 3: Cross multiply
    447,543,221.40x = 617,527,658.25 × 249,299,782.74
  4. Step 4: Simplify right side
    447,543,221.40x = 153,949,511,037,665,984
  5. Step 5: Solve for x
    x = 153,949,511,037,665,984/447,543,221.40
  6. Step 6: Final answer
    x = 343,988,029.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.