Home / 13,001,869.10-19,505,136.45-5,429,600.30

Finding the Fourth Proportional to 13,001,869.10, 19,505,136.45 and 5,429,600.30

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Solution

The fourth proportional to 13,001,869.10, 19,505,136.45 and 5,429,600.30 is: 8,145,374.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,001,869.10 : 19,505,136.45 = 5,429,600.30 : x
  2. Step 2: Convert to fraction form
    13,001,869.10/19,505,136.45 = 5,429,600.30/x
  3. Step 3: Cross multiply
    13,001,869.10x = 19,505,136.45 × 5,429,600.30
  4. Step 4: Simplify right side
    13,001,869.10x = 105,905,094,720,460.92
  5. Step 5: Solve for x
    x = 105,905,094,720,460.92/13,001,869.10
  6. Step 6: Final answer
    x = 8,145,374.63

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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.