Home / 489,925,961.60-734,888,942.40-326,667,286.40

Finding the Fourth Proportional to 489,925,961.60, 734,888,942.40 and 326,667,286.40

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Solution

The fourth proportional to 489,925,961.60, 734,888,942.40 and 326,667,286.40 is: 490,000,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,925,961.60 : 734,888,942.40 = 326,667,286.40 : x
  2. Step 2: Convert to fraction form
    489,925,961.60/734,888,942.40 = 326,667,286.40/x
  3. Step 3: Cross multiply
    489,925,961.60x = 734,888,942.40 × 326,667,286.40
  4. Step 4: Simplify right side
    489,925,961.60x = 240,064,176,619,173,888
  5. Step 5: Solve for x
    x = 240,064,176,619,173,888/489,925,961.60
  6. Step 6: Final answer
    x = 490,000,929.60

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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.