Home / 20,242,796,458.10-27,921,608,090.78-13,017,977,974.55

Finding the Fourth Proportional to 20,242,796,458.10, 27,921,608,090.78 and 13,017,977,974.55

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Solution

The fourth proportional to 20,242,796,458.10, 27,921,608,090.78 and 13,017,977,974.55 is: 17,956,159,362.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242,796,458.10 : 27,921,608,090.78 = 13,017,977,974.55 : x
  2. Step 2: Convert to fraction form
    20,242,796,458.10/27,921,608,090.78 = 13,017,977,974.55/x
  3. Step 3: Cross multiply
    20,242,796,458.10x = 27,921,608,090.78 × 13,017,977,974.55
  4. Step 4: Simplify right side
    20,242,796,458.10x = 363,482,879,139,586,441,216
  5. Step 5: Solve for x
    x = 363,482,879,139,586,441,216/20,242,796,458.10
  6. Step 6: Final answer
    x = 17,956,159,362.27

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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.