Home / 825,121,325.80-1,237,256,835.90-307,285,215.40

Finding the Fourth Proportional to 825,121,325.80, 1,237,256,835.90 and 307,285,215.40

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Solution

The fourth proportional to 825,121,325.80, 1,237,256,835.90 and 307,285,215.40 is: 460,769,491.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,121,325.80 : 1,237,256,835.90 = 307,285,215.40 : x
  2. Step 2: Convert to fraction form
    825,121,325.80/1,237,256,835.90 = 307,285,215.40/x
  3. Step 3: Cross multiply
    825,121,325.80x = 1,237,256,835.90 × 307,285,215.40
  4. Step 4: Simplify right side
    825,121,325.80x = 380,190,733,324,653,952
  5. Step 5: Solve for x
    x = 380,190,733,324,653,952/825,121,325.80
  6. Step 6: Final answer
    x = 460,769,491.03

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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.