Home / 579,571,147.50-799,735,472.91-391,807,982.94

Finding the Fourth Proportional to 579,571,147.50, 799,735,472.91 and 391,807,982.94

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Solution

The fourth proportional to 579,571,147.50, 799,735,472.91 and 391,807,982.94 is: 540,645,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,571,147.50 : 799,735,472.91 = 391,807,982.94 : x
  2. Step 2: Convert to fraction form
    579,571,147.50/799,735,472.91 = 391,807,982.94/x
  3. Step 3: Cross multiply
    579,571,147.50x = 799,735,472.91 × 391,807,982.94
  4. Step 4: Simplify right side
    579,571,147.50x = 313,342,742,526,434,112
  5. Step 5: Solve for x
    x = 313,342,742,526,434,112/579,571,147.50
  6. Step 6: Final answer
    x = 540,645,861.82

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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.