Home / 209,464,882.70-289,050,854.52-115,377,004.18

Finding the Fourth Proportional to 209,464,882.70, 289,050,854.52 and 115,377,004.18

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Solution

The fourth proportional to 209,464,882.70, 289,050,854.52 and 115,377,004.18 is: 159,214,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,464,882.70 : 289,050,854.52 = 115,377,004.18 : x
  2. Step 2: Convert to fraction form
    209,464,882.70/289,050,854.52 = 115,377,004.18/x
  3. Step 3: Cross multiply
    209,464,882.70x = 289,050,854.52 × 115,377,004.18
  4. Step 4: Simplify right side
    209,464,882.70x = 33,349,821,649,463,980
  5. Step 5: Solve for x
    x = 33,349,821,649,463,980/209,464,882.70
  6. Step 6: Final answer
    x = 159,214,381.05

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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.