Home / 78,633,733.79-117,967,626.86-30,111,589.31

Finding the Fourth Proportional to 78,633,733.79, 117,967,626.86 and 30,111,589.31

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Solution

The fourth proportional to 78,633,733.79, 117,967,626.86 and 30,111,589.31 is: 45,173,903.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,633,733.79 : 117,967,626.86 = 30,111,589.31 : x
  2. Step 2: Convert to fraction form
    78,633,733.79/117,967,626.86 = 30,111,589.31/x
  3. Step 3: Cross multiply
    78,633,733.79x = 117,967,626.86 × 30,111,589.31
  4. Step 4: Simplify right side
    78,633,733.79x = 3,552,192,732,569,584
  5. Step 5: Solve for x
    x = 3,552,192,732,569,584/78,633,733.79
  6. Step 6: Final answer
    x = 45,173,903.89

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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.