Home / 811,722,813,102.85-1,120,178,216,262.90-445,940,711,830.39

Finding the Fourth Proportional to 811,722,813,102.85, 1,120,178,216,262.90 and 445,940,711,830.39

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Solution

The fourth proportional to 811,722,813,102.85, 1,120,178,216,262.90 and 445,940,711,830.39 is: 615,398,585,667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,722,813,102.85 : 1,120,178,216,262.90 = 445,940,711,830.39 : x
  2. Step 2: Convert to fraction form
    811,722,813,102.85/1,120,178,216,262.90 = 445,940,711,830.39/x
  3. Step 3: Cross multiply
    811,722,813,102.85x = 1,120,178,216,262.90 × 445,940,711,830.39
  4. Step 4: Simplify right side
    811,722,813,102.85x = 499,533,071,137,174,139,699,200
  5. Step 5: Solve for x
    x = 499,533,071,137,174,139,699,200/811,722,813,102.85
  6. Step 6: Final answer
    x = 615,398,585,667.05

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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.