Home / 278,714,327.51-384,531,629.10-157,999,364.75

Finding the Fourth Proportional to 278,714,327.51, 384,531,629.10 and 157,999,364.75

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Solution

The fourth proportional to 278,714,327.51, 384,531,629.10 and 157,999,364.75 is: 217,985,755.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,714,327.51 : 384,531,629.10 = 157,999,364.75 : x
  2. Step 2: Convert to fraction form
    278,714,327.51/384,531,629.10 = 157,999,364.75/x
  3. Step 3: Cross multiply
    278,714,327.51x = 384,531,629.10 × 157,999,364.75
  4. Step 4: Simplify right side
    278,714,327.51x = 60,755,753,122,159,960
  5. Step 5: Solve for x
    x = 60,755,753,122,159,960/278,714,327.51
  6. Step 6: Final answer
    x = 217,985,755.04

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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.