Home / 28,358,887.20-42,538,330.80-16,993,485.60

Finding the Fourth Proportional to 28,358,887.20, 42,538,330.80 and 16,993,485.60

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Solution

The fourth proportional to 28,358,887.20, 42,538,330.80 and 16,993,485.60 is: 25,490,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358,887.20 : 42,538,330.80 = 16,993,485.60 : x
  2. Step 2: Convert to fraction form
    28,358,887.20/42,538,330.80 = 16,993,485.60/x
  3. Step 3: Cross multiply
    28,358,887.20x = 42,538,330.80 × 16,993,485.60
  4. Step 4: Simplify right side
    28,358,887.20x = 722,874,511,897,836.50
  5. Step 5: Solve for x
    x = 722,874,511,897,836.50/28,358,887.20
  6. Step 6: Final answer
    x = 25,490,228.40

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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.