Home / 12,784,157.10-19,188,045.45-6,398,991.90

Finding the Fourth Proportional to 12,784,157.10, 19,188,045.45 and 6,398,991.90

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Solution

The fourth proportional to 12,784,157.10, 19,188,045.45 and 6,398,991.90 is: 9,604,399.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784,157.10 : 19,188,045.45 = 6,398,991.90 : x
  2. Step 2: Convert to fraction form
    12,784,157.10/19,188,045.45 = 6,398,991.90/x
  3. Step 3: Cross multiply
    12,784,157.10x = 19,188,045.45 × 6,398,991.90
  4. Step 4: Simplify right side
    12,784,157.10x = 122,784,147,411,381.86
  5. Step 5: Solve for x
    x = 122,784,147,411,381.86/12,784,157.10
  6. Step 6: Final answer
    x = 9,604,399.14

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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.