Finding the Fourth Proportional to 702,090,615.70, 1,053,135,923.55 and 357,716,847.70
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Solution
The fourth proportional to 702,090,615.70, 1,053,135,923.55 and 357,716,847.70 is: 536,575,271.55
Step by Step Solution
- Step 1: Write the proportion equation
702,090,615.70 : 1,053,135,923.55 = 357,716,847.70 : x - Step 2: Convert to fraction form
702,090,615.70/1,053,135,923.55 = 357,716,847.70/x - Step 3: Cross multiply
702,090,615.70x = 1,053,135,923.55 × 357,716,847.70 - Step 4: Simplify right side
702,090,615.70x = 376,724,462,771,934,144 - Step 5: Solve for x
x = 376,724,462,771,934,144/702,090,615.70 - Step 6: Final answer
x = 536,575,271.55
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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.