Home / 748,289,491.20-1,121,594,428.80-360,298,195.20

Finding the Fourth Proportional to 748,289,491.20, 1,121,594,428.80 and 360,298,195.20

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Solution

The fourth proportional to 748,289,491.20, 1,121,594,428.80 and 360,298,195.20 is: 540,042,928.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,289,491.20 : 1,121,594,428.80 = 360,298,195.20 : x
  2. Step 2: Convert to fraction form
    748,289,491.20/1,121,594,428.80 = 360,298,195.20/x
  3. Step 3: Cross multiply
    748,289,491.20x = 1,121,594,428.80 × 360,298,195.20
  4. Step 4: Simplify right side
    748,289,491.20x = 404,108,448,443,014,848
  5. Step 5: Solve for x
    x = 404,108,448,443,014,848/748,289,491.20
  6. Step 6: Final answer
    x = 540,042,928.83

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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.