Home / 209,485,531.23-289,099,002.20-116,666,038.77

Finding the Fourth Proportional to 209,485,531.23, 289,099,002.20 and 116,666,038.77

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Solution

The fourth proportional to 209,485,531.23, 289,099,002.20 and 116,666,038.77 is: 161,004,128.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,485,531.23 : 289,099,002.20 = 116,666,038.77 : x
  2. Step 2: Convert to fraction form
    209,485,531.23/289,099,002.20 = 116,666,038.77/x
  3. Step 3: Cross multiply
    209,485,531.23x = 289,099,002.20 × 116,666,038.77
  4. Step 4: Simplify right side
    209,485,531.23x = 33,728,035,398,450,184
  5. Step 5: Solve for x
    x = 33,728,035,398,450,184/209,485,531.23
  6. Step 6: Final answer
    x = 161,004,128.54

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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.