Home / 1,119,420,789.30-1,545,296,104.89-723,137,044.86

Finding the Fourth Proportional to 1,119,420,789.30, 1,545,296,104.89 and 723,137,044.86

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Solution

The fourth proportional to 1,119,420,789.30, 1,545,296,104.89 and 723,137,044.86 is: 998,249,156.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,420,789.30 : 1,545,296,104.89 = 723,137,044.86 : x
  2. Step 2: Convert to fraction form
    1,119,420,789.30/1,545,296,104.89 = 723,137,044.86/x
  3. Step 3: Cross multiply
    1,119,420,789.30x = 1,545,296,104.89 × 723,137,044.86
  4. Step 4: Simplify right side
    1,119,420,789.30x = 1,117,460,858,723,823,232
  5. Step 5: Solve for x
    x = 1,117,460,858,723,823,232/1,119,420,789.30
  6. Step 6: Final answer
    x = 998,249,156.53

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.