Finding the Fourth Proportional to 991,266,918.93, 1,486,738,775.58 and 291,595,424.10
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Solution
The fourth proportional to 991,266,918.93, 1,486,738,775.58 and 291,595,424.10 is: 437,345,598.36
Step by Step Solution
- Step 1: Write the proportion equation
991,266,918.93 : 1,486,738,775.58 = 291,595,424.10 : x - Step 2: Convert to fraction form
991,266,918.93/1,486,738,775.58 = 291,595,424.10/x - Step 3: Cross multiply
991,266,918.93x = 1,486,738,775.58 × 291,595,424.10 - Step 4: Simplify right side
991,266,918.93x = 433,526,223,791,164,864 - Step 5: Solve for x
x = 433,526,223,791,164,864/991,266,918.93 - Step 6: Final answer
x = 437,345,598.36
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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.