Home / 15,306,168.33-21,122,510.40-8,430,650.42

Finding the Fourth Proportional to 15,306,168.33, 21,122,510.40 and 8,430,650.42

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Solution

The fourth proportional to 15,306,168.33, 21,122,510.40 and 8,430,650.42 is: 11,634,296.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306,168.33 : 21,122,510.40 = 8,430,650.42 : x
  2. Step 2: Convert to fraction form
    15,306,168.33/21,122,510.40 = 8,430,650.42/x
  3. Step 3: Cross multiply
    15,306,168.33x = 21,122,510.40 × 8,430,650.42
  4. Step 4: Simplify right side
    15,306,168.33x = 178,076,501,069,601.78
  5. Step 5: Solve for x
    x = 178,076,501,069,601.78/15,306,168.33
  6. Step 6: Final answer
    x = 11,634,296.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.