Home / 1,260,455,291.10-1,890,682,936.65-802,424,007.90

Finding the Fourth Proportional to 1,260,455,291.10, 1,890,682,936.65 and 802,424,007.90

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Solution

The fourth proportional to 1,260,455,291.10, 1,890,682,936.65 and 802,424,007.90 is: 1,203,636,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,455,291.10 : 1,890,682,936.65 = 802,424,007.90 : x
  2. Step 2: Convert to fraction form
    1,260,455,291.10/1,890,682,936.65 = 802,424,007.90/x
  3. Step 3: Cross multiply
    1,260,455,291.10x = 1,890,682,936.65 × 802,424,007.90
  4. Step 4: Simplify right side
    1,260,455,291.10x = 1,517,129,379,694,834,944
  5. Step 5: Solve for x
    x = 1,517,129,379,694,834,944/1,260,455,291.10
  6. Step 6: Final answer
    x = 1,203,636,011.85

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Double scale
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Similar ratio
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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.