Home / 262,440,346.80-393,660,520.20-260,928,692.40

Finding the Fourth Proportional to 262,440,346.80, 393,660,520.20 and 260,928,692.40

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Solution

The fourth proportional to 262,440,346.80, 393,660,520.20 and 260,928,692.40 is: 391,393,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,440,346.80 : 393,660,520.20 = 260,928,692.40 : x
  2. Step 2: Convert to fraction form
    262,440,346.80/393,660,520.20 = 260,928,692.40/x
  3. Step 3: Cross multiply
    262,440,346.80x = 393,660,520.20 × 260,928,692.40
  4. Step 4: Simplify right side
    262,440,346.80x = 102,717,324,785,289,792
  5. Step 5: Solve for x
    x = 102,717,324,785,289,792/262,440,346.80
  6. Step 6: Final answer
    x = 391,393,038.60

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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.