Finding the Fourth Proportional to 1,497,731,478.75, 2,246,903,627.76 and 515,030,394.20
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Solution
The fourth proportional to 1,497,731,478.75, 2,246,903,627.76 and 515,030,394.20 is: 772,650,957.49
Step by Step Solution
- Step 1: Write the proportion equation
1,497,731,478.75 : 2,246,903,627.76 = 515,030,394.20 : x - Step 2: Convert to fraction form
1,497,731,478.75/2,246,903,627.76 = 515,030,394.20/x - Step 3: Cross multiply
1,497,731,478.75x = 2,246,903,627.76 × 515,030,394.20 - Step 4: Simplify right side
1,497,731,478.75x = 1,157,223,661,123,408,384 - Step 5: Solve for x
x = 1,157,223,661,123,408,384/1,497,731,478.75 - Step 6: Final answer
x = 772,650,957.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.