Home / 8,303,619.40-12,455,429.10-6,980,921.80

Finding the Fourth Proportional to 8,303,619.40, 12,455,429.10 and 6,980,921.80

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Solution

The fourth proportional to 8,303,619.40, 12,455,429.10 and 6,980,921.80 is: 10,471,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303,619.40 : 12,455,429.10 = 6,980,921.80 : x
  2. Step 2: Convert to fraction form
    8,303,619.40/12,455,429.10 = 6,980,921.80/x
  3. Step 3: Cross multiply
    8,303,619.40x = 12,455,429.10 × 6,980,921.80
  4. Step 4: Simplify right side
    8,303,619.40x = 86,950,376,532,544.38
  5. Step 5: Solve for x
    x = 86,950,376,532,544.38/8,303,619.40
  6. Step 6: Final answer
    x = 10,471,382.70

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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.