Home / 393,061,220.87-589,570,573.66-120,432,775.19

Finding the Fourth Proportional to 393,061,220.87, 589,570,573.66 and 120,432,775.19

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Solution

The fourth proportional to 393,061,220.87, 589,570,573.66 and 120,432,775.19 is: 180,642,649.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,061,220.87 : 589,570,573.66 = 120,432,775.19 : x
  2. Step 2: Convert to fraction form
    393,061,220.87/589,570,573.66 = 120,432,775.19/x
  3. Step 3: Cross multiply
    393,061,220.87x = 589,570,573.66 × 120,432,775.19
  4. Step 4: Simplify right side
    393,061,220.87x = 71,003,620,352,985,184
  5. Step 5: Solve for x
    x = 71,003,620,352,985,184/393,061,220.87
  6. Step 6: Final answer
    x = 180,642,649.50

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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.