Home / 289,706,999.90-434,560,499.85-263,347,526.30

Finding the Fourth Proportional to 289,706,999.90, 434,560,499.85 and 263,347,526.30

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Solution

The fourth proportional to 289,706,999.90, 434,560,499.85 and 263,347,526.30 is: 395,021,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,706,999.90 : 434,560,499.85 = 263,347,526.30 : x
  2. Step 2: Convert to fraction form
    289,706,999.90/434,560,499.85 = 263,347,526.30/x
  3. Step 3: Cross multiply
    289,706,999.90x = 434,560,499.85 × 263,347,526.30
  4. Step 4: Simplify right side
    289,706,999.90x = 114,440,432,663,189,040
  5. Step 5: Solve for x
    x = 114,440,432,663,189,040/289,706,999.90
  6. Step 6: Final answer
    x = 395,021,289.45

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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.