Home / 72,864,328.60-109,308,740.10-21,751,514.20

Finding the Fourth Proportional to 72,864,328.60, 109,308,740.10 and 21,751,514.20

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Solution

The fourth proportional to 72,864,328.60, 109,308,740.10 and 21,751,514.20 is: 32,630,927.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,864,328.60 : 109,308,740.10 = 21,751,514.20 : x
  2. Step 2: Convert to fraction form
    72,864,328.60/109,308,740.10 = 21,751,514.20/x
  3. Step 3: Cross multiply
    72,864,328.60x = 109,308,740.10 × 21,751,514.20
  4. Step 4: Simplify right side
    72,864,328.60x = 2,377,630,612,469,259
  5. Step 5: Solve for x
    x = 2,377,630,612,469,259/72,864,328.60
  6. Step 6: Final answer
    x = 32,630,927.34

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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.