Home / 3,138,238,049.28-4,330,768,302.72-1,818,903,880.32

Finding the Fourth Proportional to 3,138,238,049.28, 4,330,768,302.72 and 1,818,903,880.32

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Solution

The fourth proportional to 3,138,238,049.28, 4,330,768,302.72 and 1,818,903,880.32 is: 2,510,087,235.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,238,049.28 : 4,330,768,302.72 = 1,818,903,880.32 : x
  2. Step 2: Convert to fraction form
    3,138,238,049.28/4,330,768,302.72 = 1,818,903,880.32/x
  3. Step 3: Cross multiply
    3,138,238,049.28x = 4,330,768,302.72 × 1,818,903,880.32
  4. Step 4: Simplify right side
    3,138,238,049.28x = 7,877,251,270,584,268,800
  5. Step 5: Solve for x
    x = 7,877,251,270,584,268,800/3,138,238,049.28
  6. Step 6: Final answer
    x = 2,510,087,235.86

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1.5x scale

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.