Home / 12,990,325.92-19,489,816.31-4,355,280.83

Finding the Fourth Proportional to 12,990,325.92, 19,489,816.31 and 4,355,280.83

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Solution

The fourth proportional to 12,990,325.92, 19,489,816.31 and 4,355,280.83 is: 6,534,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990,325.92 : 19,489,816.31 = 4,355,280.83 : x
  2. Step 2: Convert to fraction form
    12,990,325.92/19,489,816.31 = 4,355,280.83/x
  3. Step 3: Cross multiply
    12,990,325.92x = 19,489,816.31 × 4,355,280.83
  4. Step 4: Simplify right side
    12,990,325.92x = 84,883,623,235,938.86
  5. Step 5: Solve for x
    x = 84,883,623,235,938.86/12,990,325.92
  6. Step 6: Final answer
    x = 6,534,372.10

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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.