Home / 8,148,938.40-12,209,410.80-3,879,914.40

Finding the Fourth Proportional to 8,148,938.40, 12,209,410.80 and 3,879,914.40

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Solution

The fourth proportional to 8,148,938.40, 12,209,410.80 and 3,879,914.40 is: 5,813,207.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148,938.40 : 12,209,410.80 = 3,879,914.40 : x
  2. Step 2: Convert to fraction form
    8,148,938.40/12,209,410.80 = 3,879,914.40/x
  3. Step 3: Cross multiply
    8,148,938.40x = 12,209,410.80 × 3,879,914.40
  4. Step 4: Simplify right side
    8,148,938.40x = 47,371,468,778,435.52
  5. Step 5: Solve for x
    x = 47,371,468,778,435.52/8,148,938.40
  6. Step 6: Final answer
    x = 5,813,207.37

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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.