Home / 266,169,767.40-399,292,736.76-81,952,830.36

Finding the Fourth Proportional to 266,169,767.40, 399,292,736.76 and 81,952,830.36

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Solution

The fourth proportional to 266,169,767.40, 399,292,736.76 and 81,952,830.36 is: 122,940,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,169,767.40 : 399,292,736.76 = 81,952,830.36 : x
  2. Step 2: Convert to fraction form
    266,169,767.40/399,292,736.76 = 81,952,830.36/x
  3. Step 3: Cross multiply
    266,169,767.40x = 399,292,736.76 × 81,952,830.36
  4. Step 4: Simplify right side
    266,169,767.40x = 32,723,169,919,672,416
  5. Step 5: Solve for x
    x = 32,723,169,919,672,416/266,169,767.40
  6. Step 6: Final answer
    x = 122,940,971.99

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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.