Home / 278,714,328.51-384,531,630.48-157,999,365.75

Finding the Fourth Proportional to 278,714,328.51, 384,531,630.48 and 157,999,365.75

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Solution

The fourth proportional to 278,714,328.51, 384,531,630.48 and 157,999,365.75 is: 217,985,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,714,328.51 : 384,531,630.48 = 157,999,365.75 : x
  2. Step 2: Convert to fraction form
    278,714,328.51/384,531,630.48 = 157,999,365.75/x
  3. Step 3: Cross multiply
    278,714,328.51x = 384,531,630.48 × 157,999,365.75
  4. Step 4: Simplify right side
    278,714,328.51x = 60,755,753,726,653,368
  5. Step 5: Solve for x
    x = 60,755,753,726,653,368/278,714,328.51
  6. Step 6: Final answer
    x = 217,985,756.42

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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.