Home / 12,318,530.87-16,999,682.69-6,812,276.16

Finding the Fourth Proportional to 12,318,530.87, 16,999,682.69 and 6,812,276.16

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Solution

The fourth proportional to 12,318,530.87, 16,999,682.69 and 6,812,276.16 is: 9,401,001.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318,530.87 : 16,999,682.69 = 6,812,276.16 : x
  2. Step 2: Convert to fraction form
    12,318,530.87/16,999,682.69 = 6,812,276.16/x
  3. Step 3: Cross multiply
    12,318,530.87x = 16,999,682.69 × 6,812,276.16
  4. Step 4: Simplify right side
    12,318,530.87x = 115,806,533,116,651.69
  5. Step 5: Solve for x
    x = 115,806,533,116,651.69/12,318,530.87
  6. Step 6: Final answer
    x = 9,401,001.98

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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.