Home / 38,458,446,714.56-53,072,968,082.74-21,311,586,411.42

Finding the Fourth Proportional to 38,458,446,714.56, 53,072,968,082.74 and 21,311,586,411.42

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Solution

The fourth proportional to 38,458,446,714.56, 53,072,968,082.74 and 21,311,586,411.42 is: 29,410,161,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,458,446,714.56 : 53,072,968,082.74 = 21,311,586,411.42 : x
  2. Step 2: Convert to fraction form
    38,458,446,714.56/53,072,968,082.74 = 21,311,586,411.42/x
  3. Step 3: Cross multiply
    38,458,446,714.56x = 53,072,968,082.74 × 21,311,586,411.42
  4. Step 4: Simplify right side
    38,458,446,714.56x = 1,131,069,145,405,849,075,712
  5. Step 5: Solve for x
    x = 1,131,069,145,405,849,075,712/38,458,446,714.56
  6. Step 6: Final answer
    x = 29,410,161,928.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.