Home / 209,864,317.28-289,613,271.84-117,050,836.64

Finding the Fourth Proportional to 209,864,317.28, 289,613,271.84 and 117,050,836.64

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Solution

The fourth proportional to 209,864,317.28, 289,613,271.84 and 117,050,836.64 is: 161,530,441.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,864,317.28 : 289,613,271.84 = 117,050,836.64 : x
  2. Step 2: Convert to fraction form
    209,864,317.28/289,613,271.84 = 117,050,836.64/x
  3. Step 3: Cross multiply
    209,864,317.28x = 289,613,271.84 × 117,050,836.64
  4. Step 4: Simplify right side
    209,864,317.28x = 33,899,475,770,919,748
  5. Step 5: Solve for x
    x = 33,899,475,770,919,748/209,864,317.28
  6. Step 6: Final answer
    x = 161,530,441.24

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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.