Home / 266,779,963.20-400,169,944.80-221,430,331.20

Finding the Fourth Proportional to 266,779,963.20, 400,169,944.80 and 221,430,331.20

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Solution

The fourth proportional to 266,779,963.20, 400,169,944.80 and 221,430,331.20 is: 332,145,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,779,963.20 : 400,169,944.80 = 221,430,331.20 : x
  2. Step 2: Convert to fraction form
    266,779,963.20/400,169,944.80 = 221,430,331.20/x
  3. Step 3: Cross multiply
    266,779,963.20x = 400,169,944.80 × 221,430,331.20
  4. Step 4: Simplify right side
    266,779,963.20x = 88,609,763,413,349,712
  5. Step 5: Solve for x
    x = 88,609,763,413,349,712/266,779,963.20
  6. Step 6: Final answer
    x = 332,145,496.80

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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.