Finding the Fourth Proportional to 1,314,916,894.60, 1,814,586,292.88 and 712,092,197.18
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Solution
The fourth proportional to 1,314,916,894.60, 1,814,586,292.88 and 712,092,197.18 is: 982,687,761.92
Step by Step Solution
- Step 1: Write the proportion equation
1,314,916,894.60 : 1,814,586,292.88 = 712,092,197.18 : x - Step 2: Convert to fraction form
1,314,916,894.60/1,814,586,292.88 = 712,092,197.18/x - Step 3: Cross multiply
1,314,916,894.60x = 1,814,586,292.88 × 712,092,197.18 - Step 4: Simplify right side
1,314,916,894.60x = 1,292,152,740,269,630,208 - Step 5: Solve for x
x = 1,292,152,740,269,630,208/1,314,916,894.60 - Step 6: Final answer
x = 982,687,761.92
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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.