Home / 260,812,999.40-391,219,499.10-124,764,103.40

Finding the Fourth Proportional to 260,812,999.40, 391,219,499.10 and 124,764,103.40

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Solution

The fourth proportional to 260,812,999.40, 391,219,499.10 and 124,764,103.40 is: 187,146,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,812,999.40 : 391,219,499.10 = 124,764,103.40 : x
  2. Step 2: Convert to fraction form
    260,812,999.40/391,219,499.10 = 124,764,103.40/x
  3. Step 3: Cross multiply
    260,812,999.40x = 391,219,499.10 × 124,764,103.40
  4. Step 4: Simplify right side
    260,812,999.40x = 48,810,150,037,808,616
  5. Step 5: Solve for x
    x = 48,810,150,037,808,616/260,812,999.40
  6. Step 6: Final answer
    x = 187,146,155.10

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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.