Finding the Fourth Proportional to 1,215,787,366.95, 1,823,721,420.35 and 418,096,677.05
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Solution
The fourth proportional to 1,215,787,366.95, 1,823,721,420.35 and 418,096,677.05 is: 627,158,898.37
Step by Step Solution
- Step 1: Write the proportion equation
1,215,787,366.95 : 1,823,721,420.35 = 418,096,677.05 : x - Step 2: Convert to fraction form
1,215,787,366.95/1,823,721,420.35 = 418,096,677.05/x - Step 3: Cross multiply
1,215,787,366.95x = 1,823,721,420.35 × 418,096,677.05 - Step 4: Simplify right side
1,215,787,366.95x = 762,491,865,713,241,216 - Step 5: Solve for x
x = 762,491,865,713,241,216/1,215,787,366.95 - Step 6: Final answer
x = 627,158,898.37
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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.