Home / 78,631,496,193.60-117,947,244,290.40-28,980,451,598.40

Finding the Fourth Proportional to 78,631,496,193.60, 117,947,244,290.40 and 28,980,451,598.40

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Solution

The fourth proportional to 78,631,496,193.60, 117,947,244,290.40 and 28,980,451,598.40 is: 43,470,677,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,631,496,193.60 : 117,947,244,290.40 = 28,980,451,598.40 : x
  2. Step 2: Convert to fraction form
    78,631,496,193.60/117,947,244,290.40 = 28,980,451,598.40/x
  3. Step 3: Cross multiply
    78,631,496,193.60x = 117,947,244,290.40 × 28,980,451,598.40
  4. Step 4: Simplify right side
    78,631,496,193.60x = 3,418,164,404,322,598,125,568
  5. Step 5: Solve for x
    x = 3,418,164,404,322,598,125,568/78,631,496,193.60
  6. Step 6: Final answer
    x = 43,470,677,397.60

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Double scale
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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.