Home / 769,669,537.66-1,154,387,656.14-209,475,020.40

Finding the Fourth Proportional to 769,669,537.66, 1,154,387,656.14 and 209,475,020.40

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Solution

The fourth proportional to 769,669,537.66, 1,154,387,656.14 and 209,475,020.40 is: 314,180,782.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,669,537.66 : 1,154,387,656.14 = 209,475,020.40 : x
  2. Step 2: Convert to fraction form
    769,669,537.66/1,154,387,656.14 = 209,475,020.40/x
  3. Step 3: Cross multiply
    769,669,537.66x = 1,154,387,656.14 × 209,475,020.40
  4. Step 4: Simplify right side
    769,669,537.66x = 241,815,377,819,434,720
  5. Step 5: Solve for x
    x = 241,815,377,819,434,720/769,669,537.66
  6. Step 6: Final answer
    x = 314,180,782.77

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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.