Home / 8,312,362.40-12,476,416.80-5,123,716.40

Finding the Fourth Proportional to 8,312,362.40, 12,476,416.80 and 5,123,716.40

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Solution

The fourth proportional to 8,312,362.40, 12,476,416.80 and 5,123,716.40 is: 7,690,427.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312,362.40 : 12,476,416.80 = 5,123,716.40 : x
  2. Step 2: Convert to fraction form
    8,312,362.40/12,476,416.80 = 5,123,716.40/x
  3. Step 3: Cross multiply
    8,312,362.40x = 12,476,416.80 × 5,123,716.40
  4. Step 4: Simplify right side
    8,312,362.40x = 63,925,621,371,395.53
  5. Step 5: Solve for x
    x = 63,925,621,371,395.53/8,312,362.40
  6. Step 6: Final answer
    x = 7,690,427.62

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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.