Home / 12,896,782.77-17,787,485.88-7,999,258.71

Finding the Fourth Proportional to 12,896,782.77, 17,787,485.88 and 7,999,258.71

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Solution

The fourth proportional to 12,896,782.77, 17,787,485.88 and 7,999,258.71 is: 11,032,728.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896,782.77 : 17,787,485.88 = 7,999,258.71 : x
  2. Step 2: Convert to fraction form
    12,896,782.77/17,787,485.88 = 7,999,258.71/x
  3. Step 3: Cross multiply
    12,896,782.77x = 17,787,485.88 × 7,999,258.71
  4. Step 4: Simplify right side
    12,896,782.77x = 142,286,701,354,592
  5. Step 5: Solve for x
    x = 142,286,701,354,592/12,896,782.77
  6. Step 6: Final answer
    x = 11,032,728.39

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1.5x scale

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.