Home / 66,816,486.40-100,224,729.60-39,942,630.40

Finding the Fourth Proportional to 66,816,486.40, 100,224,729.60 and 39,942,630.40

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Solution

The fourth proportional to 66,816,486.40, 100,224,729.60 and 39,942,630.40 is: 59,913,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,816,486.40 : 100,224,729.60 = 39,942,630.40 : x
  2. Step 2: Convert to fraction form
    66,816,486.40/100,224,729.60 = 39,942,630.40/x
  3. Step 3: Cross multiply
    66,816,486.40x = 100,224,729.60 × 39,942,630.40
  4. Step 4: Simplify right side
    66,816,486.40x = 4,003,239,331,352,739.50
  5. Step 5: Solve for x
    x = 4,003,239,331,352,739.50/66,816,486.40
  6. Step 6: Final answer
    x = 59,913,945.60

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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.