Home / 127,379,670.43-190,819,800.62-66,009,086.72

Finding the Fourth Proportional to 127,379,670.43, 190,819,800.62 and 66,009,086.72

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Solution

The fourth proportional to 127,379,670.43, 190,819,800.62 and 66,009,086.72 is: 98,884,231.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,379,670.43 : 190,819,800.62 = 66,009,086.72 : x
  2. Step 2: Convert to fraction form
    127,379,670.43/190,819,800.62 = 66,009,086.72/x
  3. Step 3: Cross multiply
    127,379,670.43x = 190,819,800.62 × 66,009,086.72
  4. Step 4: Simplify right side
    127,379,670.43x = 12,595,840,767,327,312
  5. Step 5: Solve for x
    x = 12,595,840,767,327,312/127,379,670.43
  6. Step 6: Final answer
    x = 98,884,231.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.