Home / 526,315,561.77-726,286,700.61-288,114,665.96

Finding the Fourth Proportional to 526,315,561.77, 726,286,700.61 and 288,114,665.96

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Solution

The fourth proportional to 526,315,561.77, 726,286,700.61 and 288,114,665.96 is: 397,582,487.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,315,561.77 : 726,286,700.61 = 288,114,665.96 : x
  2. Step 2: Convert to fraction form
    526,315,561.77/726,286,700.61 = 288,114,665.96/x
  3. Step 3: Cross multiply
    526,315,561.77x = 726,286,700.61 × 288,114,665.96
  4. Step 4: Simplify right side
    526,315,561.77x = 209,253,850,137,440,672
  5. Step 5: Solve for x
    x = 209,253,850,137,440,672/526,315,561.77
  6. Step 6: Final answer
    x = 397,582,487.27

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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.