Home / 289,099,455.90-433,123,057.26-258,105,816.78

Finding the Fourth Proportional to 289,099,455.90, 433,123,057.26 and 258,105,816.78

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Solution

The fourth proportional to 289,099,455.90, 433,123,057.26 and 258,105,816.78 is: 386,689,003.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,099,455.90 : 433,123,057.26 = 258,105,816.78 : x
  2. Step 2: Convert to fraction form
    289,099,455.90/433,123,057.26 = 258,105,816.78/x
  3. Step 3: Cross multiply
    289,099,455.90x = 433,123,057.26 × 258,105,816.78
  4. Step 4: Simplify right side
    289,099,455.90x = 111,791,580,460,343,008
  5. Step 5: Solve for x
    x = 111,791,580,460,343,008/289,099,455.90
  6. Step 6: Final answer
    x = 386,689,003.31

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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.