Home / 12,318,529.87-16,999,681.31-6,812,275.16

Finding the Fourth Proportional to 12,318,529.87, 16,999,681.31 and 6,812,275.16

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Solution

The fourth proportional to 12,318,529.87, 16,999,681.31 and 6,812,275.16 is: 9,401,000.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318,529.87 : 16,999,681.31 = 6,812,275.16 : x
  2. Step 2: Convert to fraction form
    12,318,529.87/16,999,681.31 = 6,812,275.16/x
  3. Step 3: Cross multiply
    12,318,529.87x = 16,999,681.31 × 6,812,275.16
  4. Step 4: Simplify right side
    12,318,529.87x = 115,806,506,750,013.11
  5. Step 5: Solve for x
    x = 115,806,506,750,013.11/12,318,529.87
  6. Step 6: Final answer
    x = 9,401,000.61

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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.