Finding the Fourth Proportional to 1,252,468,270.21, 1,728,358,861.41 and 695,587,189.54
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Solution
The fourth proportional to 1,252,468,270.21, 1,728,358,861.41 and 695,587,189.54 is: 959,884,023.83
Step by Step Solution
- Step 1: Write the proportion equation
1,252,468,270.21 : 1,728,358,861.41 = 695,587,189.54 : x - Step 2: Convert to fraction form
1,252,468,270.21/1,728,358,861.41 = 695,587,189.54/x - Step 3: Cross multiply
1,252,468,270.21x = 1,728,358,861.41 × 695,587,189.54 - Step 4: Simplify right side
1,252,468,270.21x = 1,202,224,282,924,736,256 - Step 5: Solve for x
x = 1,202,224,282,924,736,256/1,252,468,270.21 - Step 6: Final answer
x = 959,884,023.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.