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Finding the Fourth Proportional to 7,809,699, 11,714,755.86 and 2,490,915

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Solution

The fourth proportional to 7,809,699, 11,714,755.86 and 2,490,915 is: 3,736,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809,699 : 11,714,755.86 = 2,490,915 : x
  2. Step 2: Convert to fraction form
    7,809,699/11,714,755.86 = 2,490,915/x
  3. Step 3: Cross multiply
    7,809,699x = 11,714,755.86 × 2,490,915
  4. Step 4: Simplify right side
    7,809,699x = 29,180,461,093,011.90
  5. Step 5: Solve for x
    x = 29,180,461,093,011.90/7,809,699
  6. Step 6: Final answer
    x = 3,736,438.64

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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.