Home / 1,235,413,790.78-1,853,119,198.94-315,290,227.82

Finding the Fourth Proportional to 1,235,413,790.78, 1,853,119,198.94 and 315,290,227.82

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Solution

The fourth proportional to 1,235,413,790.78, 1,853,119,198.94 and 315,290,227.82 is: 472,934,962.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,413,790.78 : 1,853,119,198.94 = 315,290,227.82 : x
  2. Step 2: Convert to fraction form
    1,235,413,790.78/1,853,119,198.94 = 315,290,227.82/x
  3. Step 3: Cross multiply
    1,235,413,790.78x = 1,853,119,198.94 × 315,290,227.82
  4. Step 4: Simplify right side
    1,235,413,790.78x = 584,270,374,400,566,400
  5. Step 5: Solve for x
    x = 584,270,374,400,566,400/1,235,413,790.78
  6. Step 6: Final answer
    x = 472,934,962.17

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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.