Home / 78,229,873.62-117,341,914.83-31,563,541.26

Finding the Fourth Proportional to 78,229,873.62, 117,341,914.83 and 31,563,541.26

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Solution

The fourth proportional to 78,229,873.62, 117,341,914.83 and 31,563,541.26 is: 47,344,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,229,873.62 : 117,341,914.83 = 31,563,541.26 : x
  2. Step 2: Convert to fraction form
    78,229,873.62/117,341,914.83 = 31,563,541.26/x
  3. Step 3: Cross multiply
    78,229,873.62x = 117,341,914.83 × 31,563,541.26
  4. Step 4: Simplify right side
    78,229,873.62x = 3,703,726,370,264,111
  5. Step 5: Solve for x
    x = 3,703,726,370,264,111/78,229,873.62
  6. Step 6: Final answer
    x = 47,344,143.60

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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.