Home / 7,250,445.40-10,005,871.40-3,987,512.68

Finding the Fourth Proportional to 7,250,445.40, 10,005,871.40 and 3,987,512.68

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Solution

The fourth proportional to 7,250,445.40, 10,005,871.40 and 3,987,512.68 is: 5,502,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,250,445.40 : 10,005,871.40 = 3,987,512.68 : x
  2. Step 2: Convert to fraction form
    7,250,445.40/10,005,871.40 = 3,987,512.68/x
  3. Step 3: Cross multiply
    7,250,445.40x = 10,005,871.40 × 3,987,512.68
  4. Step 4: Simplify right side
    7,250,445.40x = 39,898,539,081,949.35
  5. Step 5: Solve for x
    x = 39,898,539,081,949.35/7,250,445.40
  6. Step 6: Final answer
    x = 5,502,908.70

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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.