Home / 31,030,945.89-42,822,705-17,985,771.55

Finding the Fourth Proportional to 31,030,945.89, 42,822,705 and 17,985,771.55

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Solution

The fourth proportional to 31,030,945.89, 42,822,705 and 17,985,771.55 is: 24,820,364.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,030,945.89 : 42,822,705 = 17,985,771.55 : x
  2. Step 2: Convert to fraction form
    31,030,945.89/42,822,705 = 17,985,771.55/x
  3. Step 3: Cross multiply
    31,030,945.89x = 42,822,705 × 17,985,771.55
  4. Step 4: Simplify right side
    31,030,945.89x = 770,199,389,283,042.75
  5. Step 5: Solve for x
    x = 770,199,389,283,042.75/31,030,945.89
  6. Step 6: Final answer
    x = 24,820,364.55

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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.