Home / 5,430,894.75-8,146,342.13-1,387,391.49

Finding the Fourth Proportional to 5,430,894.75, 8,146,342.13 and 1,387,391.49

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Solution

The fourth proportional to 5,430,894.75, 8,146,342.13 and 1,387,391.49 is: 2,081,087.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,894.75 : 8,146,342.13 = 1,387,391.49 : x
  2. Step 2: Convert to fraction form
    5,430,894.75/8,146,342.13 = 1,387,391.49/x
  3. Step 3: Cross multiply
    5,430,894.75x = 8,146,342.13 × 1,387,391.49
  4. Step 4: Simplify right side
    5,430,894.75x = 11,302,165,738,853.52
  5. Step 5: Solve for x
    x = 11,302,165,738,853.52/5,430,894.75
  6. Step 6: Final answer
    x = 2,081,087.24

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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.