Home / 561,093,991.76-774,333,621.84-313,575,338.72

Finding the Fourth Proportional to 561,093,991.76, 774,333,621.84 and 313,575,338.72

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Solution

The fourth proportional to 561,093,991.76, 774,333,621.84 and 313,575,338.72 is: 432,747,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,093,991.76 : 774,333,621.84 = 313,575,338.72 : x
  2. Step 2: Convert to fraction form
    561,093,991.76/774,333,621.84 = 313,575,338.72/x
  3. Step 3: Cross multiply
    561,093,991.76x = 774,333,621.84 × 313,575,338.72
  4. Step 4: Simplify right side
    561,093,991.76x = 242,811,927,750,762,432
  5. Step 5: Solve for x
    x = 242,811,927,750,762,432/561,093,991.76
  6. Step 6: Final answer
    x = 432,747,331.67

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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.