Home / 103,426,243.20-155,139,364.80-31,622,659.20

Finding the Fourth Proportional to 103,426,243.20, 155,139,364.80 and 31,622,659.20

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Solution

The fourth proportional to 103,426,243.20, 155,139,364.80 and 31,622,659.20 is: 47,433,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,426,243.20 : 155,139,364.80 = 31,622,659.20 : x
  2. Step 2: Convert to fraction form
    103,426,243.20/155,139,364.80 = 31,622,659.20/x
  3. Step 3: Cross multiply
    103,426,243.20x = 155,139,364.80 × 31,622,659.20
  4. Step 4: Simplify right side
    103,426,243.20x = 4,905,919,261,574,876
  5. Step 5: Solve for x
    x = 4,905,919,261,574,876/103,426,243.20
  6. Step 6: Final answer
    x = 47,433,988.80

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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.