Home / 289,657,965.20-434,990,832.60-153,609,069.20

Finding the Fourth Proportional to 289,657,965.20, 434,990,832.60 and 153,609,069.20

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Solution

The fourth proportional to 289,657,965.20, 434,990,832.60 and 153,609,069.20 is: 230,680,819.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,657,965.20 : 434,990,832.60 = 153,609,069.20 : x
  2. Step 2: Convert to fraction form
    289,657,965.20/434,990,832.60 = 153,609,069.20/x
  3. Step 3: Cross multiply
    289,657,965.20x = 434,990,832.60 × 153,609,069.20
  4. Step 4: Simplify right side
    289,657,965.20x = 66,818,536,906,219,016
  5. Step 5: Solve for x
    x = 66,818,536,906,219,016/289,657,965.20
  6. Step 6: Final answer
    x = 230,680,819.91

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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.