Home / 78,374,582.91-108,143,850.96-43,562,540.20

Finding the Fourth Proportional to 78,374,582.91, 108,143,850.96 and 43,562,540.20

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Solution

The fourth proportional to 78,374,582.91, 108,143,850.96 and 43,562,540.20 is: 60,109,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,374,582.91 : 108,143,850.96 = 43,562,540.20 : x
  2. Step 2: Convert to fraction form
    78,374,582.91/108,143,850.96 = 43,562,540.20/x
  3. Step 3: Cross multiply
    78,374,582.91x = 108,143,850.96 × 43,562,540.20
  4. Step 4: Simplify right side
    78,374,582.91x = 4,711,020,854,827,809
  5. Step 5: Solve for x
    x = 4,711,020,854,827,809/78,374,582.91
  6. Step 6: Final answer
    x = 60,109,038.92

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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.