Home / 149,172,178.18-205,859,738.61-85,602,876.69

Finding the Fourth Proportional to 149,172,178.18, 205,859,738.61 and 85,602,876.69

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Solution

The fourth proportional to 149,172,178.18, 205,859,738.61 and 85,602,876.69 is: 118,133,193.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,172,178.18 : 205,859,738.61 = 85,602,876.69 : x
  2. Step 2: Convert to fraction form
    149,172,178.18/205,859,738.61 = 85,602,876.69/x
  3. Step 3: Cross multiply
    149,172,178.18x = 205,859,738.61 × 85,602,876.69
  4. Step 4: Simplify right side
    149,172,178.18x = 17,622,185,819,667,462
  5. Step 5: Solve for x
    x = 17,622,185,819,667,462/149,172,178.18
  6. Step 6: Final answer
    x = 118,133,193.70

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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.