Home / 209,458,624.16-289,052,900.10-121,403,697.63

Finding the Fourth Proportional to 209,458,624.16, 289,052,900.10 and 121,403,697.63

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Solution

The fourth proportional to 209,458,624.16, 289,052,900.10 and 121,403,697.63 is: 167,537,102.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,458,624.16 : 289,052,900.10 = 121,403,697.63 : x
  2. Step 2: Convert to fraction form
    209,458,624.16/289,052,900.10 = 121,403,697.63/x
  3. Step 3: Cross multiply
    209,458,624.16x = 289,052,900.10 × 121,403,697.63
  4. Step 4: Simplify right side
    209,458,624.16x = 35,092,090,882,815,000
  5. Step 5: Solve for x
    x = 35,092,090,882,815,000/209,458,624.16
  6. Step 6: Final answer
    x = 167,537,102.01

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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.