Home / 209,601,489.51-289,252,014.93-115,518,994.83

Finding the Fourth Proportional to 209,601,489.51, 289,252,014.93 and 115,518,994.83

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Solution

The fourth proportional to 209,601,489.51, 289,252,014.93 and 115,518,994.83 is: 159,417,292.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,601,489.51 : 289,252,014.93 = 115,518,994.83 : x
  2. Step 2: Convert to fraction form
    209,601,489.51/289,252,014.93 = 115,518,994.83/x
  3. Step 3: Cross multiply
    209,601,489.51x = 289,252,014.93 × 115,518,994.83
  4. Step 4: Simplify right side
    209,601,489.51x = 33,414,102,017,265,752
  5. Step 5: Solve for x
    x = 33,414,102,017,265,752/209,601,489.51
  6. Step 6: Final answer
    x = 159,417,292.77

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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.