Home / 38,010,647.20-57,015,970.80-12,452,490.40

Finding the Fourth Proportional to 38,010,647.20, 57,015,970.80 and 12,452,490.40

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Solution

The fourth proportional to 38,010,647.20, 57,015,970.80 and 12,452,490.40 is: 18,678,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,010,647.20 : 57,015,970.80 = 12,452,490.40 : x
  2. Step 2: Convert to fraction form
    38,010,647.20/57,015,970.80 = 12,452,490.40/x
  3. Step 3: Cross multiply
    38,010,647.20x = 57,015,970.80 × 12,452,490.40
  4. Step 4: Simplify right side
    38,010,647.20x = 709,990,829,033,680.25
  5. Step 5: Solve for x
    x = 709,990,829,033,680.25/38,010,647.20
  6. Step 6: Final answer
    x = 18,678,735.60

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Similar ratio
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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.