Home / 3,219,265,133.60-4,828,897,700.40-2,178,491,079.20

Finding the Fourth Proportional to 3,219,265,133.60, 4,828,897,700.40 and 2,178,491,079.20

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Solution

The fourth proportional to 3,219,265,133.60, 4,828,897,700.40 and 2,178,491,079.20 is: 3,267,736,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219,265,133.60 : 4,828,897,700.40 = 2,178,491,079.20 : x
  2. Step 2: Convert to fraction form
    3,219,265,133.60/4,828,897,700.40 = 2,178,491,079.20/x
  3. Step 3: Cross multiply
    3,219,265,133.60x = 4,828,897,700.40 × 2,178,491,079.20
  4. Step 4: Simplify right side
    3,219,265,133.60x = 10,519,710,562,690,793,472
  5. Step 5: Solve for x
    x = 10,519,710,562,690,793,472/3,219,265,133.60
  6. Step 6: Final answer
    x = 3,267,736,618.80

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Double scale
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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.