Home / 209,835,267.70-289,567,555.74-115,747,354.58

Finding the Fourth Proportional to 209,835,267.70, 289,567,555.74 and 115,747,354.58

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Solution

The fourth proportional to 209,835,267.70, 289,567,555.74 and 115,747,354.58 is: 159,728,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,835,267.70 : 289,567,555.74 = 115,747,354.58 : x
  2. Step 2: Convert to fraction form
    209,835,267.70/289,567,555.74 = 115,747,354.58/x
  3. Step 3: Cross multiply
    209,835,267.70x = 289,567,555.74 × 115,747,354.58
  4. Step 4: Simplify right side
    209,835,267.70x = 33,516,678,549,101,696
  5. Step 5: Solve for x
    x = 33,516,678,549,101,696/209,835,267.70
  6. Step 6: Final answer
    x = 159,728,528.56

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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.