Home / 13,146,840.60-19,720,260.90-7,478,136.60

Finding the Fourth Proportional to 13,146,840.60, 19,720,260.90 and 7,478,136.60

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Solution

The fourth proportional to 13,146,840.60, 19,720,260.90 and 7,478,136.60 is: 11,217,204.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,840.60 : 19,720,260.90 = 7,478,136.60 : x
  2. Step 2: Convert to fraction form
    13,146,840.60/19,720,260.90 = 7,478,136.60/x
  3. Step 3: Cross multiply
    13,146,840.60x = 19,720,260.90 × 7,478,136.60
  4. Step 4: Simplify right side
    13,146,840.60x = 147,470,804,797,838.91
  5. Step 5: Solve for x
    x = 147,470,804,797,838.91/13,146,840.60
  6. Step 6: Final answer
    x = 11,217,204.90

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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.