Home / 209,601,493.51-289,252,020.45-115,518,998.83

Finding the Fourth Proportional to 209,601,493.51, 289,252,020.45 and 115,518,998.83

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Solution

The fourth proportional to 209,601,493.51, 289,252,020.45 and 115,518,998.83 is: 159,417,298.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,601,493.51 : 289,252,020.45 = 115,518,998.83 : x
  2. Step 2: Convert to fraction form
    209,601,493.51/289,252,020.45 = 115,518,998.83/x
  3. Step 3: Cross multiply
    209,601,493.51x = 289,252,020.45 × 115,518,998.83
  4. Step 4: Simplify right side
    209,601,493.51x = 33,414,103,811,938,684
  5. Step 5: Solve for x
    x = 33,414,103,811,938,684/209,601,493.51
  6. Step 6: Final answer
    x = 159,417,298.29

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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.