Home / 271,285,384.60-406,928,076.90-258,814,235.80

Finding the Fourth Proportional to 271,285,384.60, 406,928,076.90 and 258,814,235.80

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Solution

The fourth proportional to 271,285,384.60, 406,928,076.90 and 258,814,235.80 is: 388,221,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,285,384.60 : 406,928,076.90 = 258,814,235.80 : x
  2. Step 2: Convert to fraction form
    271,285,384.60/406,928,076.90 = 258,814,235.80/x
  3. Step 3: Cross multiply
    271,285,384.60x = 406,928,076.90 × 258,814,235.80
  4. Step 4: Simplify right side
    271,285,384.60x = 105,318,779,248,437,136
  5. Step 5: Solve for x
    x = 105,318,779,248,437,136/271,285,384.60
  6. Step 6: Final answer
    x = 388,221,353.70

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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.