Home / 147,186,299.40-203,118,455.42-81,109,162.34

Finding the Fourth Proportional to 147,186,299.40, 203,118,455.42 and 81,109,162.34

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Solution

The fourth proportional to 147,186,299.40, 203,118,455.42 and 81,109,162.34 is: 111,931,394.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,186,299.40 : 203,118,455.42 = 81,109,162.34 : x
  2. Step 2: Convert to fraction form
    147,186,299.40/203,118,455.42 = 81,109,162.34/x
  3. Step 3: Cross multiply
    147,186,299.40x = 203,118,455.42 × 81,109,162.34
  4. Step 4: Simplify right side
    147,186,299.40x = 16,474,767,774,910,832
  5. Step 5: Solve for x
    x = 16,474,767,774,910,832/147,186,299.40
  6. Step 6: Final answer
    x = 111,931,394.72

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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.