Home / 209,939,015.61-289,715,966.26-117,119,523.56

Finding the Fourth Proportional to 209,939,015.61, 289,715,966.26 and 117,119,523.56

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Solution

The fourth proportional to 209,939,015.61, 289,715,966.26 and 117,119,523.56 is: 161,625,012.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,939,015.61 : 289,715,966.26 = 117,119,523.56 : x
  2. Step 2: Convert to fraction form
    209,939,015.61/289,715,966.26 = 117,119,523.56/x
  3. Step 3: Cross multiply
    209,939,015.61x = 289,715,966.26 × 117,119,523.56
  4. Step 4: Simplify right side
    209,939,015.61x = 33,931,395,934,354,856
  5. Step 5: Solve for x
    x = 33,931,395,934,354,856/209,939,015.61
  6. Step 6: Final answer
    x = 161,625,012.08

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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.