Home / 152,759,872.54-210,826,574.82-85,789,836.76

Finding the Fourth Proportional to 152,759,872.54, 210,826,574.82 and 85,789,836.76

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Solution

The fourth proportional to 152,759,872.54, 210,826,574.82 and 85,789,836.76 is: 118,400,055.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,759,872.54 : 210,826,574.82 = 85,789,836.76 : x
  2. Step 2: Convert to fraction form
    152,759,872.54/210,826,574.82 = 85,789,836.76/x
  3. Step 3: Cross multiply
    152,759,872.54x = 210,826,574.82 × 85,789,836.76
  4. Step 4: Simplify right side
    152,759,872.54x = 18,086,777,438,477,728
  5. Step 5: Solve for x
    x = 18,086,777,438,477,728/152,759,872.54
  6. Step 6: Final answer
    x = 118,400,055.84

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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.