Home / 57,084,987.08-78,777,858.98-30,979,730.44

Finding the Fourth Proportional to 57,084,987.08, 78,777,858.98 and 30,979,730.44

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Solution

The fourth proportional to 57,084,987.08, 78,777,858.98 and 30,979,730.44 is: 42,752,341.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,084,987.08 : 78,777,858.98 = 30,979,730.44 : x
  2. Step 2: Convert to fraction form
    57,084,987.08/78,777,858.98 = 30,979,730.44/x
  3. Step 3: Cross multiply
    57,084,987.08x = 78,777,858.98 × 30,979,730.44
  4. Step 4: Simplify right side
    57,084,987.08x = 2,440,516,835,840,733.50
  5. Step 5: Solve for x
    x = 2,440,516,835,840,733.50/57,084,987.08
  6. Step 6: Final answer
    x = 42,752,341.04

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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.