Home / 31,020,022.78-42,807,631.38-17,081,344.66

Finding the Fourth Proportional to 31,020,022.78, 42,807,631.38 and 17,081,344.66

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Solution

The fourth proportional to 31,020,022.78, 42,807,631.38 and 17,081,344.66 is: 23,572,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,020,022.78 : 42,807,631.38 = 17,081,344.66 : x
  2. Step 2: Convert to fraction form
    31,020,022.78/42,807,631.38 = 17,081,344.66/x
  3. Step 3: Cross multiply
    31,020,022.78x = 42,807,631.38 × 17,081,344.66
  4. Step 4: Simplify right side
    31,020,022.78x = 731,211,905,680,011.50
  5. Step 5: Solve for x
    x = 731,211,905,680,011.50/31,020,022.78
  6. Step 6: Final answer
    x = 23,572,255.60

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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.