Home / 811,722,813,103.35-1,120,178,216,263.60-445,940,711,830.89

Finding the Fourth Proportional to 811,722,813,103.35, 1,120,178,216,263.60 and 445,940,711,830.89

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Solution

The fourth proportional to 811,722,813,103.35, 1,120,178,216,263.60 and 445,940,711,830.89 is: 615,398,585,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,722,813,103.35 : 1,120,178,216,263.60 = 445,940,711,830.89 : x
  2. Step 2: Convert to fraction form
    811,722,813,103.35/1,120,178,216,263.60 = 445,940,711,830.89/x
  3. Step 3: Cross multiply
    811,722,813,103.35x = 1,120,178,216,263.60 × 445,940,711,830.89
  4. Step 4: Simplify right side
    811,722,813,103.35x = 499,533,071,138,046,487,822,336
  5. Step 5: Solve for x
    x = 499,533,071,138,046,487,822,336/811,722,813,103.35
  6. Step 6: Final answer
    x = 615,398,585,667.75

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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.