Home / 1,173,181,011.80-1,759,771,517.70-628,985,427.80

Finding the Fourth Proportional to 1,173,181,011.80, 1,759,771,517.70 and 628,985,427.80

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Solution

The fourth proportional to 1,173,181,011.80, 1,759,771,517.70 and 628,985,427.80 is: 943,478,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,181,011.80 : 1,759,771,517.70 = 628,985,427.80 : x
  2. Step 2: Convert to fraction form
    1,173,181,011.80/1,759,771,517.70 = 628,985,427.80/x
  3. Step 3: Cross multiply
    1,173,181,011.80x = 1,759,771,517.70 × 628,985,427.80
  4. Step 4: Simplify right side
    1,173,181,011.80x = 1,106,870,640,890,789,760
  5. Step 5: Solve for x
    x = 1,106,870,640,890,789,760/1,173,181,011.80
  6. Step 6: Final answer
    x = 943,478,141.70

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Double scale
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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.