Home / 189,005,685.75-260,828,022.11-102,085,557.75

Finding the Fourth Proportional to 189,005,685.75, 260,828,022.11 and 102,085,557.75

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Solution

The fourth proportional to 189,005,685.75, 260,828,022.11 and 102,085,557.75 is: 140,878,164.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,005,685.75 : 260,828,022.11 = 102,085,557.75 : x
  2. Step 2: Convert to fraction form
    189,005,685.75/260,828,022.11 = 102,085,557.75/x
  3. Step 3: Cross multiply
    189,005,685.75x = 260,828,022.11 × 102,085,557.75
  4. Step 4: Simplify right side
    189,005,685.75x = 26,626,774,113,418,252
  5. Step 5: Solve for x
    x = 26,626,774,113,418,252/189,005,685.75
  6. Step 6: Final answer
    x = 140,878,164.63

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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.