Finding the Fourth Proportional to 7,243,368,202.60, 10,865,052,303.90 and 2,585,394,125.80
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Solution
The fourth proportional to 7,243,368,202.60, 10,865,052,303.90 and 2,585,394,125.80 is: 3,878,091,188.70
Step by Step Solution
- Step 1: Write the proportion equation
7,243,368,202.60 : 10,865,052,303.90 = 2,585,394,125.80 : x - Step 2: Convert to fraction form
7,243,368,202.60/10,865,052,303.90 = 2,585,394,125.80/x - Step 3: Cross multiply
7,243,368,202.60x = 10,865,052,303.90 × 2,585,394,125.80 - Step 4: Simplify right side
7,243,368,202.60x = 28,090,442,403,012,816,896 - Step 5: Solve for x
x = 28,090,442,403,012,816,896/7,243,368,202.60 - Step 6: Final answer
x = 3,878,091,188.70
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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.