Home / 79,430,394.60-109,360,552.68-67,781,207.88

Finding the Fourth Proportional to 79,430,394.60, 109,360,552.68 and 67,781,207.88

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Solution

The fourth proportional to 79,430,394.60, 109,360,552.68 and 67,781,207.88 is: 93,321,837.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,430,394.60 : 109,360,552.68 = 67,781,207.88 : x
  2. Step 2: Convert to fraction form
    79,430,394.60/109,360,552.68 = 67,781,207.88/x
  3. Step 3: Cross multiply
    79,430,394.60x = 109,360,552.68 × 67,781,207.88
  4. Step 4: Simplify right side
    79,430,394.60x = 7,412,590,355,074,771
  5. Step 5: Solve for x
    x = 7,412,590,355,074,771/79,430,394.60
  6. Step 6: Final answer
    x = 93,321,837.22

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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.