Home / 16,789,912.40-25,178,647.80-5,430,731.60

Finding the Fourth Proportional to 16,789,912.40, 25,178,647.80 and 5,430,731.60

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Solution

The fourth proportional to 16,789,912.40, 25,178,647.80 and 5,430,731.60 is: 8,144,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,789,912.40 : 25,178,647.80 = 5,430,731.60 : x
  2. Step 2: Convert to fraction form
    16,789,912.40/25,178,647.80 = 5,430,731.60/x
  3. Step 3: Cross multiply
    16,789,912.40x = 25,178,647.80 × 5,430,731.60
  4. Step 4: Simplify right side
    16,789,912.40x = 136,738,478,252,730.47
  5. Step 5: Solve for x
    x = 136,738,478,252,730.47/16,789,912.40
  6. Step 6: Final answer
    x = 8,144,085.27

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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.