Home / 7,250,712-10,005,782.73-3,987,526.65

Finding the Fourth Proportional to 7,250,712, 10,005,782.73 and 3,987,526.65

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Solution

The fourth proportional to 7,250,712, 10,005,782.73 and 3,987,526.65 is: 5,502,676.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,250,712 : 10,005,782.73 = 3,987,526.65 : x
  2. Step 2: Convert to fraction form
    7,250,712/10,005,782.73 = 3,987,526.65/x
  3. Step 3: Cross multiply
    7,250,712x = 10,005,782.73 × 3,987,526.65
  4. Step 4: Simplify right side
    7,250,712x = 39,898,325,289,984.76
  5. Step 5: Solve for x
    x = 39,898,325,289,984.76/7,250,712
  6. Step 6: Final answer
    x = 5,502,676.88

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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.