Home / 299,638,819.20-449,458,228.80-153,869,145.60

Finding the Fourth Proportional to 299,638,819.20, 449,458,228.80 and 153,869,145.60

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Solution

The fourth proportional to 299,638,819.20, 449,458,228.80 and 153,869,145.60 is: 230,803,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,638,819.20 : 449,458,228.80 = 153,869,145.60 : x
  2. Step 2: Convert to fraction form
    299,638,819.20/449,458,228.80 = 153,869,145.60/x
  3. Step 3: Cross multiply
    299,638,819.20x = 449,458,228.80 × 153,869,145.60
  4. Step 4: Simplify right side
    299,638,819.20x = 69,157,753,648,345,312
  5. Step 5: Solve for x
    x = 69,157,753,648,345,312/299,638,819.20
  6. Step 6: Final answer
    x = 230,803,718.40

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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.