Home / 383,357,489.56-574,831,649.52-198,939,283.12

Finding the Fourth Proportional to 383,357,489.56, 574,831,649.52 and 198,939,283.12

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Solution

The fourth proportional to 383,357,489.56, 574,831,649.52 and 198,939,283.12 is: 298,302,757.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,357,489.56 : 574,831,649.52 = 198,939,283.12 : x
  2. Step 2: Convert to fraction form
    383,357,489.56/574,831,649.52 = 198,939,283.12/x
  3. Step 3: Cross multiply
    383,357,489.56x = 574,831,649.52 × 198,939,283.12
  4. Step 4: Simplify right side
    383,357,489.56x = 114,356,596,270,195,888
  5. Step 5: Solve for x
    x = 114,356,596,270,195,888/383,357,489.56
  6. Step 6: Final answer
    x = 298,302,757.57

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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.