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Finding the Fourth Proportional to 7,946,798, 11,921,973.92 and 2,898,108.52

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Solution

The fourth proportional to 7,946,798, 11,921,973.92 and 2,898,108.52 is: 4,347,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946,798 : 11,921,973.92 = 2,898,108.52 : x
  2. Step 2: Convert to fraction form
    7,946,798/11,921,973.92 = 2,898,108.52/x
  3. Step 3: Cross multiply
    7,946,798x = 11,921,973.92 × 2,898,108.52
  4. Step 4: Simplify right side
    7,946,798x = 34,551,174,192,769.80
  5. Step 5: Solve for x
    x = 34,551,174,192,769.80/7,946,798
  6. Step 6: Final answer
    x = 4,347,810.80

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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.