Home / 579,525,308.78-799,672,338.20-391,762,137.96

Finding the Fourth Proportional to 579,525,308.78, 799,672,338.20 and 391,762,137.96

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Solution

The fourth proportional to 579,525,308.78, 799,672,338.20 and 391,762,137.96 is: 540,582,680.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,525,308.78 : 799,672,338.20 = 391,762,137.96 : x
  2. Step 2: Convert to fraction form
    579,525,308.78/799,672,338.20 = 391,762,137.96/x
  3. Step 3: Cross multiply
    579,525,308.78x = 799,672,338.20 × 391,762,137.96
  4. Step 4: Simplify right side
    579,525,308.78x = 313,281,344,880,704,192
  5. Step 5: Solve for x
    x = 313,281,344,880,704,192/579,525,308.78
  6. Step 6: Final answer
    x = 540,582,680.57

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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.