Home / 7,218,315-9,961,276.86-4,317,828.12

Finding the Fourth Proportional to 7,218,315, 9,961,276.86 and 4,317,828.12

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Solution

The fourth proportional to 7,218,315, 9,961,276.86 and 4,317,828.12 is: 5,958,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,315 : 9,961,276.86 = 4,317,828.12 : x
  2. Step 2: Convert to fraction form
    7,218,315/9,961,276.86 = 4,317,828.12/x
  3. Step 3: Cross multiply
    7,218,315x = 9,961,276.86 × 4,317,828.12
  4. Step 4: Simplify right side
    7,218,315x = 43,011,081,337,213.30
  5. Step 5: Solve for x
    x = 43,011,081,337,213.30/7,218,315
  6. Step 6: Final answer
    x = 5,958,604.10

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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.