Home / 1,208,520,079.20-1,812,780,118.80-634,016,757.60

Finding the Fourth Proportional to 1,208,520,079.20, 1,812,780,118.80 and 634,016,757.60

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Solution

The fourth proportional to 1,208,520,079.20, 1,812,780,118.80 and 634,016,757.60 is: 951,025,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,520,079.20 : 1,812,780,118.80 = 634,016,757.60 : x
  2. Step 2: Convert to fraction form
    1,208,520,079.20/1,812,780,118.80 = 634,016,757.60/x
  3. Step 3: Cross multiply
    1,208,520,079.20x = 1,812,780,118.80 × 634,016,757.60
  4. Step 4: Simplify right side
    1,208,520,079.20x = 1,149,332,973,163,318,784
  5. Step 5: Solve for x
    x = 1,149,332,973,163,318,784/1,208,520,079.20
  6. Step 6: Final answer
    x = 951,025,136.40

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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.