Home / 218,678,828.10-328,068,008.55-127,755,615.30

Finding the Fourth Proportional to 218,678,828.10, 328,068,008.55 and 127,755,615.30

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Solution

The fourth proportional to 218,678,828.10, 328,068,008.55 and 127,755,615.30 is: 191,662,497.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,678,828.10 : 328,068,008.55 = 127,755,615.30 : x
  2. Step 2: Convert to fraction form
    218,678,828.10/328,068,008.55 = 127,755,615.30/x
  3. Step 3: Cross multiply
    218,678,828.10x = 328,068,008.55 × 127,755,615.30
  4. Step 4: Simplify right side
    218,678,828.10x = 41,912,530,292,550,912
  5. Step 5: Solve for x
    x = 41,912,530,292,550,912/218,678,828.10
  6. Step 6: Final answer
    x = 191,662,497.26

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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.