Finding the Fourth Proportional to 556,909,622.96, 831,276,508.66 and 515,868,206
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Solution
The fourth proportional to 556,909,622.96, 831,276,508.66 and 515,868,206 is: 770,015,642.63
Step by Step Solution
- Step 1: Write the proportion equation
556,909,622.96 : 831,276,508.66 = 515,868,206 : x - Step 2: Convert to fraction form
556,909,622.96/831,276,508.66 = 515,868,206/x - Step 3: Cross multiply
556,909,622.96x = 831,276,508.66 × 515,868,206 - Step 4: Simplify right side
556,909,622.96x = 428,829,121,212,377,664 - Step 5: Solve for x
x = 428,829,121,212,377,664/556,909,622.96 - Step 6: Final answer
x = 770,015,642.63
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.