Home / 262,335,782.80-393,503,674.20-80,592,000.40

Finding the Fourth Proportional to 262,335,782.80, 393,503,674.20 and 80,592,000.40

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Solution

The fourth proportional to 262,335,782.80, 393,503,674.20 and 80,592,000.40 is: 120,888,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,335,782.80 : 393,503,674.20 = 80,592,000.40 : x
  2. Step 2: Convert to fraction form
    262,335,782.80/393,503,674.20 = 80,592,000.40/x
  3. Step 3: Cross multiply
    262,335,782.80x = 393,503,674.20 × 80,592,000.40
  4. Step 4: Simplify right side
    262,335,782.80x = 31,713,248,268,527,872
  5. Step 5: Solve for x
    x = 31,713,248,268,527,872/262,335,782.80
  6. Step 6: Final answer
    x = 120,888,000.60

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1.5x scale

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.