Home / 66,128,554.30-99,193,148.43-20,070,823.54

Finding the Fourth Proportional to 66,128,554.30, 99,193,148.43 and 20,070,823.54

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Solution

The fourth proportional to 66,128,554.30, 99,193,148.43 and 20,070,823.54 is: 30,106,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,128,554.30 : 99,193,148.43 = 20,070,823.54 : x
  2. Step 2: Convert to fraction form
    66,128,554.30/99,193,148.43 = 20,070,823.54/x
  3. Step 3: Cross multiply
    66,128,554.30x = 99,193,148.43 × 20,070,823.54
  4. Step 4: Simplify right side
    66,128,554.30x = 1,990,888,178,515,558
  5. Step 5: Solve for x
    x = 1,990,888,178,515,558/66,128,554.30
  6. Step 6: Final answer
    x = 30,106,331.52

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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.