Home / 81,980,317,515.10-122,970,476,272.65-48,893,226,007.90

Finding the Fourth Proportional to 81,980,317,515.10, 122,970,476,272.65 and 48,893,226,007.90

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Solution

The fourth proportional to 81,980,317,515.10, 122,970,476,272.65 and 48,893,226,007.90 is: 73,339,839,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,980,317,515.10 : 122,970,476,272.65 = 48,893,226,007.90 : x
  2. Step 2: Convert to fraction form
    81,980,317,515.10/122,970,476,272.65 = 48,893,226,007.90/x
  3. Step 3: Cross multiply
    81,980,317,515.10x = 122,970,476,272.65 × 48,893,226,007.90
  4. Step 4: Simplify right side
    81,980,317,515.10x = 6,012,423,288,697,781,223,424
  5. Step 5: Solve for x
    x = 6,012,423,288,697,781,223,424/81,980,317,515.10
  6. Step 6: Final answer
    x = 73,339,839,011.85

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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.