Home / 147,186,236.82-203,118,368.84-81,109,099.64

Finding the Fourth Proportional to 147,186,236.82, 203,118,368.84 and 81,109,099.64

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Solution

The fourth proportional to 147,186,236.82, 203,118,368.84 and 81,109,099.64 is: 111,931,308.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,186,236.82 : 203,118,368.84 = 81,109,099.64 : x
  2. Step 2: Convert to fraction form
    147,186,236.82/203,118,368.84 = 81,109,099.64/x
  3. Step 3: Cross multiply
    147,186,236.82x = 203,118,368.84 × 81,109,099.64
  4. Step 4: Simplify right side
    147,186,236.82x = 16,474,748,015,536,696
  5. Step 5: Solve for x
    x = 16,474,748,015,536,696/147,186,236.82
  6. Step 6: Final answer
    x = 111,931,308.06

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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.