Home / 289,203,353.04-399,099,181.80-157,043,172.67

Finding the Fourth Proportional to 289,203,353.04, 399,099,181.80 and 157,043,172.67

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Solution

The fourth proportional to 289,203,353.04, 399,099,181.80 and 157,043,172.67 is: 216,718,793.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,203,353.04 : 399,099,181.80 = 157,043,172.67 : x
  2. Step 2: Convert to fraction form
    289,203,353.04/399,099,181.80 = 157,043,172.67/x
  3. Step 3: Cross multiply
    289,203,353.04x = 399,099,181.80 × 157,043,172.67
  4. Step 4: Simplify right side
    289,203,353.04x = 62,675,801,719,873,120
  5. Step 5: Solve for x
    x = 62,675,801,719,873,120/289,203,353.04
  6. Step 6: Final answer
    x = 216,718,793.41

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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.