Finding the Fourth Proportional to 465,718,994.70, 698,578,492.05 and 396,472,232.40
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Solution
The fourth proportional to 465,718,994.70, 698,578,492.05 and 396,472,232.40 is: 594,708,348.60
Step by Step Solution
- Step 1: Write the proportion equation
465,718,994.70 : 698,578,492.05 = 396,472,232.40 : x - Step 2: Convert to fraction form
465,718,994.70/698,578,492.05 = 396,472,232.40/x - Step 3: Cross multiply
465,718,994.70x = 698,578,492.05 × 396,472,232.40 - Step 4: Simplify right side
465,718,994.70x = 276,966,974,249,689,120 - Step 5: Solve for x
x = 276,966,974,249,689,120/465,718,994.70 - Step 6: Final answer
x = 594,708,348.60
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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.