Home / 9,987,474.20-13,782,714.18-5,403,795.57

Finding the Fourth Proportional to 9,987,474.20, 13,782,714.18 and 5,403,795.57

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Solution

The fourth proportional to 9,987,474.20, 13,782,714.18 and 5,403,795.57 is: 7,457,237.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987,474.20 : 13,782,714.18 = 5,403,795.57 : x
  2. Step 2: Convert to fraction form
    9,987,474.20/13,782,714.18 = 5,403,795.57/x
  3. Step 3: Cross multiply
    9,987,474.20x = 13,782,714.18 × 5,403,795.57
  4. Step 4: Simplify right side
    9,987,474.20x = 74,478,969,849,407.48
  5. Step 5: Solve for x
    x = 74,478,969,849,407.48/9,987,474.20
  6. Step 6: Final answer
    x = 7,457,237.77

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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.