Finding the Fourth Proportional to 995,329,639.80, 1,492,994,459.70 and 670,454,580.60
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Solution
The fourth proportional to 995,329,639.80, 1,492,994,459.70 and 670,454,580.60 is: 1,005,681,870.90
Step by Step Solution
- Step 1: Write the proportion equation
995,329,639.80 : 1,492,994,459.70 = 670,454,580.60 : x - Step 2: Convert to fraction form
995,329,639.80/1,492,994,459.70 = 670,454,580.60/x - Step 3: Cross multiply
995,329,639.80x = 1,492,994,459.70 × 670,454,580.60 - Step 4: Simplify right side
995,329,639.80x = 1,000,984,974,316,287,232 - Step 5: Solve for x
x = 1,000,984,974,316,287,232/995,329,639.80 - Step 6: Final answer
x = 1,005,681,870.90
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1.5x scale
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.