Home / 289,399,491.20-434,099,236.80-197,566,486.40

Finding the Fourth Proportional to 289,399,491.20, 434,099,236.80 and 197,566,486.40

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Solution

The fourth proportional to 289,399,491.20, 434,099,236.80 and 197,566,486.40 is: 296,349,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,399,491.20 : 434,099,236.80 = 197,566,486.40 : x
  2. Step 2: Convert to fraction form
    289,399,491.20/434,099,236.80 = 197,566,486.40/x
  3. Step 3: Cross multiply
    289,399,491.20x = 434,099,236.80 × 197,566,486.40
  4. Step 4: Simplify right side
    289,399,491.20x = 85,763,460,963,497,584
  5. Step 5: Solve for x
    x = 85,763,460,963,497,584/289,399,491.20
  6. Step 6: Final answer
    x = 296,349,729.60

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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.