Finding the Fourth Proportional to 896,728,673.62, 1,237,332,314.05 and 520,298,965.77
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Solution
The fourth proportional to 896,728,673.62, 1,237,332,314.05 and 520,298,965.77 is: 717,923,650.99
Step by Step Solution
- Step 1: Write the proportion equation
896,728,673.62 : 1,237,332,314.05 = 520,298,965.77 : x - Step 2: Convert to fraction form
896,728,673.62/1,237,332,314.05 = 520,298,965.77/x - Step 3: Cross multiply
896,728,673.62x = 1,237,332,314.05 × 520,298,965.77 - Step 4: Simplify right side
896,728,673.62x = 643,782,723,310,759,424 - Step 5: Solve for x
x = 643,782,723,310,759,424/896,728,673.62 - Step 6: Final answer
x = 717,923,650.99
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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.