Home / 38,410,526,678.51-53,007,154,365.28-21,029,146,921.78

Finding the Fourth Proportional to 38,410,526,678.51, 53,007,154,365.28 and 21,029,146,921.78

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Solution

The fourth proportional to 38,410,526,678.51, 53,007,154,365.28 and 21,029,146,921.78 is: 29,020,566,325.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,410,526,678.51 : 53,007,154,365.28 = 21,029,146,921.78 : x
  2. Step 2: Convert to fraction form
    38,410,526,678.51/53,007,154,365.28 = 21,029,146,921.78/x
  3. Step 3: Cross multiply
    38,410,526,678.51x = 53,007,154,365.28 × 21,029,146,921.78
  4. Step 4: Simplify right side
    38,410,526,678.51x = 1,114,695,237,052,659,138,560
  5. Step 5: Solve for x
    x = 1,114,695,237,052,659,138,560/38,410,526,678.51
  6. Step 6: Final answer
    x = 29,020,566,325.02

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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.