Home / 116,503,709.40-160,835,566.95-85,106,507.49

Finding the Fourth Proportional to 116,503,709.40, 160,835,566.95 and 85,106,507.49

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Solution

The fourth proportional to 116,503,709.40, 160,835,566.95 and 85,106,507.49 is: 117,491,137.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,503,709.40 : 160,835,566.95 = 85,106,507.49 : x
  2. Step 2: Convert to fraction form
    116,503,709.40/160,835,566.95 = 85,106,507.49/x
  3. Step 3: Cross multiply
    116,503,709.40x = 160,835,566.95 × 85,106,507.49
  4. Step 4: Simplify right side
    116,503,709.40x = 13,688,153,383,288,570
  5. Step 5: Solve for x
    x = 13,688,153,383,288,570/116,503,709.40
  6. Step 6: Final answer
    x = 117,491,137.87

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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.