Home / 1,262,305,855.40-1,893,458,783.10-711,307,826.60

Finding the Fourth Proportional to 1,262,305,855.40, 1,893,458,783.10 and 711,307,826.60

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Solution

The fourth proportional to 1,262,305,855.40, 1,893,458,783.10 and 711,307,826.60 is: 1,066,961,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,305,855.40 : 1,893,458,783.10 = 711,307,826.60 : x
  2. Step 2: Convert to fraction form
    1,262,305,855.40/1,893,458,783.10 = 711,307,826.60/x
  3. Step 3: Cross multiply
    1,262,305,855.40x = 1,893,458,783.10 × 711,307,826.60
  4. Step 4: Simplify right side
    1,262,305,855.40x = 1,346,832,051,763,541,760
  5. Step 5: Solve for x
    x = 1,346,832,051,763,541,760/1,262,305,855.40
  6. Step 6: Final answer
    x = 1,066,961,739.90

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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.