Finding the Fourth Proportional to 7,243,368,209.10, 10,865,052,313.65 and 2,585,394,132.30
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Solution
The fourth proportional to 7,243,368,209.10, 10,865,052,313.65 and 2,585,394,132.30 is: 3,878,091,198.45
Step by Step Solution
- Step 1: Write the proportion equation
7,243,368,209.10 : 10,865,052,313.65 = 2,585,394,132.30 : x - Step 2: Convert to fraction form
7,243,368,209.10/10,865,052,313.65 = 2,585,394,132.30/x - Step 3: Cross multiply
7,243,368,209.10x = 10,865,052,313.65 × 2,585,394,132.30 - Step 4: Simplify right side
7,243,368,209.10x = 28,090,442,498,843,250,688 - Step 5: Solve for x
x = 28,090,442,498,843,250,688/7,243,368,209.10 - Step 6: Final answer
x = 3,878,091,198.45
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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.