Home / 680,979,692,566.32-939,752,055,420.90-372,331,260,672.90

Finding the Fourth Proportional to 680,979,692,566.32, 939,752,055,420.90 and 372,331,260,672.90

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Solution

The fourth proportional to 680,979,692,566.32, 939,752,055,420.90 and 372,331,260,672.90 is: 513,817,183,293.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,979,692,566.32 : 939,752,055,420.90 = 372,331,260,672.90 : x
  2. Step 2: Convert to fraction form
    680,979,692,566.32/939,752,055,420.90 = 372,331,260,672.90/x
  3. Step 3: Cross multiply
    680,979,692,566.32x = 939,752,055,420.90 × 372,331,260,672.90
  4. Step 4: Simplify right side
    680,979,692,566.32x = 349,899,067,514,812,694,003,712
  5. Step 5: Solve for x
    x = 349,899,067,514,812,694,003,712/680,979,692,566.32
  6. Step 6: Final answer
    x = 513,817,183,293.96

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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.