Home / 10,283,903.20-15,442,443.60-7,762,405.60

Finding the Fourth Proportional to 10,283,903.20, 15,442,443.60 and 7,762,405.60

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Solution

The fourth proportional to 10,283,903.20, 15,442,443.60 and 7,762,405.60 is: 11,656,129.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,283,903.20 : 15,442,443.60 = 7,762,405.60 : x
  2. Step 2: Convert to fraction form
    10,283,903.20/15,442,443.60 = 7,762,405.60/x
  3. Step 3: Cross multiply
    10,283,903.20x = 15,442,443.60 × 7,762,405.60
  4. Step 4: Simplify right side
    10,283,903.20x = 119,870,510,678,324.16
  5. Step 5: Solve for x
    x = 119,870,510,678,324.16/10,283,903.20
  6. Step 6: Final answer
    x = 11,656,129.81

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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.