Home / 1,266,847,913.40-1,900,268,068.36-321,444,169.60

Finding the Fourth Proportional to 1,266,847,913.40, 1,900,268,068.36 and 321,444,169.60

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Solution

The fourth proportional to 1,266,847,913.40, 1,900,268,068.36 and 321,444,169.60 is: 482,165,289.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,847,913.40 : 1,900,268,068.36 = 321,444,169.60 : x
  2. Step 2: Convert to fraction form
    1,266,847,913.40/1,900,268,068.36 = 321,444,169.60/x
  3. Step 3: Cross multiply
    1,266,847,913.40x = 1,900,268,068.36 × 321,444,169.60
  4. Step 4: Simplify right side
    1,266,847,913.40x = 610,830,091,251,376,256
  5. Step 5: Solve for x
    x = 610,830,091,251,376,256/1,266,847,913.40
  6. Step 6: Final answer
    x = 482,165,289.76

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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.