Home / 646,599,458.40-969,899,187.60-442,526,114.40

Finding the Fourth Proportional to 646,599,458.40, 969,899,187.60 and 442,526,114.40

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Solution

The fourth proportional to 646,599,458.40, 969,899,187.60 and 442,526,114.40 is: 663,789,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,599,458.40 : 969,899,187.60 = 442,526,114.40 : x
  2. Step 2: Convert to fraction form
    646,599,458.40/969,899,187.60 = 442,526,114.40/x
  3. Step 3: Cross multiply
    646,599,458.40x = 969,899,187.60 × 442,526,114.40
  4. Step 4: Simplify right side
    646,599,458.40x = 429,205,718,848,344,640
  5. Step 5: Solve for x
    x = 429,205,718,848,344,640/646,599,458.40
  6. Step 6: Final answer
    x = 663,789,171.60

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Double scale
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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.