Home / 149,172,181.06-205,859,742.58-85,602,879.57

Finding the Fourth Proportional to 149,172,181.06, 205,859,742.58 and 85,602,879.57

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Solution

The fourth proportional to 149,172,181.06, 205,859,742.58 and 85,602,879.57 is: 118,133,197.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,172,181.06 : 205,859,742.58 = 85,602,879.57 : x
  2. Step 2: Convert to fraction form
    149,172,181.06/205,859,742.58 = 85,602,879.57/x
  3. Step 3: Cross multiply
    149,172,181.06x = 205,859,742.58 × 85,602,879.57
  4. Step 4: Simplify right side
    149,172,181.06x = 17,622,186,752,386,940
  5. Step 5: Solve for x
    x = 17,622,186,752,386,940/149,172,181.06
  6. Step 6: Final answer
    x = 118,133,197.67

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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.