Home / 7,898,133.60-11,847,200.40-3,105,979.20

Finding the Fourth Proportional to 7,898,133.60, 11,847,200.40 and 3,105,979.20

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Solution

The fourth proportional to 7,898,133.60, 11,847,200.40 and 3,105,979.20 is: 4,658,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898,133.60 : 11,847,200.40 = 3,105,979.20 : x
  2. Step 2: Convert to fraction form
    7,898,133.60/11,847,200.40 = 3,105,979.20/x
  3. Step 3: Cross multiply
    7,898,133.60x = 11,847,200.40 × 3,105,979.20
  4. Step 4: Simplify right side
    7,898,133.60x = 36,797,158,020,631.68
  5. Step 5: Solve for x
    x = 36,797,158,020,631.68/7,898,133.60
  6. Step 6: Final answer
    x = 4,658,968.80

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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.