Finding the Fourth Proportional to 786,757,272.21, 1,085,696,572.68 and 434,325,695.42
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Solution
The fourth proportional to 786,757,272.21, 1,085,696,572.68 and 434,325,695.42 is: 599,353,746.83
Step by Step Solution
- Step 1: Write the proportion equation
786,757,272.21 : 1,085,696,572.68 = 434,325,695.42 : x - Step 2: Convert to fraction form
786,757,272.21/1,085,696,572.68 = 434,325,695.42/x - Step 3: Cross multiply
786,757,272.21x = 1,085,696,572.68 × 434,325,695.42 - Step 4: Simplify right side
786,757,272.21x = 471,545,918,947,065,856 - Step 5: Solve for x
x = 471,545,918,947,065,856/786,757,272.21 - Step 6: Final answer
x = 599,353,746.83
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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.