Home / 1,091,800,977.80-1,637,701,466.70-678,552,456.20

Finding the Fourth Proportional to 1,091,800,977.80, 1,637,701,466.70 and 678,552,456.20

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Solution

The fourth proportional to 1,091,800,977.80, 1,637,701,466.70 and 678,552,456.20 is: 1,017,828,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,800,977.80 : 1,637,701,466.70 = 678,552,456.20 : x
  2. Step 2: Convert to fraction form
    1,091,800,977.80/1,637,701,466.70 = 678,552,456.20/x
  3. Step 3: Cross multiply
    1,091,800,977.80x = 1,637,701,466.70 × 678,552,456.20
  4. Step 4: Simplify right side
    1,091,800,977.80x = 1,111,266,352,751,627,648
  5. Step 5: Solve for x
    x = 1,111,266,352,751,627,648/1,091,800,977.80
  6. Step 6: Final answer
    x = 1,017,828,684.30

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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.