Home / 1,317,621,841.38-1,976,363,153.20-432,190,568.72

Finding the Fourth Proportional to 1,317,621,841.38, 1,976,363,153.20 and 432,190,568.72

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Solution

The fourth proportional to 1,317,621,841.38, 1,976,363,153.20 and 432,190,568.72 is: 648,263,020.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,621,841.38 : 1,976,363,153.20 = 432,190,568.72 : x
  2. Step 2: Convert to fraction form
    1,317,621,841.38/1,976,363,153.20 = 432,190,568.72/x
  3. Step 3: Cross multiply
    1,317,621,841.38x = 1,976,363,153.20 × 432,190,568.72
  4. Step 4: Simplify right side
    1,317,621,841.38x = 854,165,515,178,760,576
  5. Step 5: Solve for x
    x = 854,165,515,178,760,576/1,317,621,841.38
  6. Step 6: Final answer
    x = 648,263,020.81

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Double scale
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1.5x scale

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.