Home / 121,993,304.64-168,351,970.08-66,239,181.96

Finding the Fourth Proportional to 121,993,304.64, 168,351,970.08 and 66,239,181.96

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Solution

The fourth proportional to 121,993,304.64, 168,351,970.08 and 66,239,181.96 is: 91,410,727.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,993,304.64 : 168,351,970.08 = 66,239,181.96 : x
  2. Step 2: Convert to fraction form
    121,993,304.64/168,351,970.08 = 66,239,181.96/x
  3. Step 3: Cross multiply
    121,993,304.64x = 168,351,970.08 × 66,239,181.96
  4. Step 4: Simplify right side
    121,993,304.64x = 11,151,496,779,453,596
  5. Step 5: Solve for x
    x = 11,151,496,779,453,596/121,993,304.64
  6. Step 6: Final answer
    x = 91,410,727.93

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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.