Home / 205,874,396.40-308,811,594.60-69,557,811.60

Finding the Fourth Proportional to 205,874,396.40, 308,811,594.60 and 69,557,811.60

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Solution

The fourth proportional to 205,874,396.40, 308,811,594.60 and 69,557,811.60 is: 104,336,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,874,396.40 : 308,811,594.60 = 69,557,811.60 : x
  2. Step 2: Convert to fraction form
    205,874,396.40/308,811,594.60 = 69,557,811.60/x
  3. Step 3: Cross multiply
    205,874,396.40x = 308,811,594.60 × 69,557,811.60
  4. Step 4: Simplify right side
    205,874,396.40x = 21,480,258,717,082,376
  5. Step 5: Solve for x
    x = 21,480,258,717,082,376/205,874,396.40
  6. Step 6: Final answer
    x = 104,336,717.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.