Home / 7,158,454.86-9,878,668.83-3,939,190.86

Finding the Fourth Proportional to 7,158,454.86, 9,878,668.83 and 3,939,190.86

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Solution

The fourth proportional to 7,158,454.86, 9,878,668.83 and 3,939,190.86 is: 5,436,084.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158,454.86 : 9,878,668.83 = 3,939,190.86 : x
  2. Step 2: Convert to fraction form
    7,158,454.86/9,878,668.83 = 3,939,190.86/x
  3. Step 3: Cross multiply
    7,158,454.86x = 9,878,668.83 × 3,939,190.86
  4. Step 4: Simplify right side
    7,158,454.86x = 38,913,961,964,102.89
  5. Step 5: Solve for x
    x = 38,913,961,964,102.89/7,158,454.86
  6. Step 6: Final answer
    x = 5,436,084.00

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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.