Home / 8,855,436,924.38-12,220,648,142.29-5,287,455,621.29

Finding the Fourth Proportional to 8,855,436,924.38, 12,220,648,142.29 and 5,287,455,621.29

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Solution

The fourth proportional to 8,855,436,924.38, 12,220,648,142.29 and 5,287,455,621.29 is: 7,296,775,446.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855,436,924.38 : 12,220,648,142.29 = 5,287,455,621.29 : x
  2. Step 2: Convert to fraction form
    8,855,436,924.38/12,220,648,142.29 = 5,287,455,621.29/x
  3. Step 3: Cross multiply
    8,855,436,924.38x = 12,220,648,142.29 × 5,287,455,621.29
  4. Step 4: Simplify right side
    8,855,436,924.38x = 64,616,134,715,779,653,632
  5. Step 5: Solve for x
    x = 64,616,134,715,779,653,632/8,855,436,924.38
  6. Step 6: Final answer
    x = 7,296,775,446.26

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Double scale
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1.5x scale

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.