Home / 312,257,315.58-430,915,098.36-173,028,077.30

Finding the Fourth Proportional to 312,257,315.58, 430,915,098.36 and 173,028,077.30

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Solution

The fourth proportional to 312,257,315.58, 430,915,098.36 and 173,028,077.30 is: 238,778,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,257,315.58 : 430,915,098.36 = 173,028,077.30 : x
  2. Step 2: Convert to fraction form
    312,257,315.58/430,915,098.36 = 173,028,077.30/x
  3. Step 3: Cross multiply
    312,257,315.58x = 430,915,098.36 × 173,028,077.30
  4. Step 4: Simplify right side
    312,257,315.58x = 74,560,410,946,616,608
  5. Step 5: Solve for x
    x = 74,560,410,946,616,608/312,257,315.58
  6. Step 6: Final answer
    x = 238,778,748.25

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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.