Home / 5,186,807.60-7,780,211.40-2,635,890.80

Finding the Fourth Proportional to 5,186,807.60, 7,780,211.40 and 2,635,890.80

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Solution

The fourth proportional to 5,186,807.60, 7,780,211.40 and 2,635,890.80 is: 3,953,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186,807.60 : 7,780,211.40 = 2,635,890.80 : x
  2. Step 2: Convert to fraction form
    5,186,807.60/7,780,211.40 = 2,635,890.80/x
  3. Step 3: Cross multiply
    5,186,807.60x = 7,780,211.40 × 2,635,890.80
  4. Step 4: Simplify right side
    5,186,807.60x = 20,507,787,651,315.12
  5. Step 5: Solve for x
    x = 20,507,787,651,315.12/5,186,807.60
  6. Step 6: Final answer
    x = 3,953,836.20

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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.