Home / 5,707,189.86-7,875,920.07-3,128,815.32

Finding the Fourth Proportional to 5,707,189.86, 7,875,920.07 and 3,128,815.32

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Solution

The fourth proportional to 5,707,189.86, 7,875,920.07 and 3,128,815.32 is: 4,317,764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707,189.86 : 7,875,920.07 = 3,128,815.32 : x
  2. Step 2: Convert to fraction form
    5,707,189.86/7,875,920.07 = 3,128,815.32/x
  3. Step 3: Cross multiply
    5,707,189.86x = 7,875,920.07 × 3,128,815.32
  4. Step 4: Simplify right side
    5,707,189.86x = 24,642,299,374,111.47
  5. Step 5: Solve for x
    x = 24,642,299,374,111.47/5,707,189.86
  6. Step 6: Final answer
    x = 4,317,764.08

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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.