Home / 217,728,049.60-326,592,074.40-81,395,718.40

Finding the Fourth Proportional to 217,728,049.60, 326,592,074.40 and 81,395,718.40

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Solution

The fourth proportional to 217,728,049.60, 326,592,074.40 and 81,395,718.40 is: 122,093,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,728,049.60 : 326,592,074.40 = 81,395,718.40 : x
  2. Step 2: Convert to fraction form
    217,728,049.60/326,592,074.40 = 81,395,718.40/x
  3. Step 3: Cross multiply
    217,728,049.60x = 326,592,074.40 × 81,395,718.40
  4. Step 4: Simplify right side
    217,728,049.60x = 26,583,196,519,534,248
  5. Step 5: Solve for x
    x = 26,583,196,519,534,248/217,728,049.60
  6. Step 6: Final answer
    x = 122,093,577.60

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1.5x scale

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.