Finding the Fourth Proportional to 1,914,014,486.80, 2,869,887,989.40 and 995,684,438.80
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Solution
The fourth proportional to 1,914,014,486.80, 2,869,887,989.40 and 995,684,438.80 is: 1,492,936,877.88
Step by Step Solution
- Step 1: Write the proportion equation
1,914,014,486.80 : 2,869,887,989.40 = 995,684,438.80 : x - Step 2: Convert to fraction form
1,914,014,486.80/2,869,887,989.40 = 995,684,438.80/x - Step 3: Cross multiply
1,914,014,486.80x = 2,869,887,989.40 × 995,684,438.80 - Step 4: Simplify right side
1,914,014,486.80x = 2,857,502,812,144,599,552 - Step 5: Solve for x
x = 2,857,502,812,144,599,552/1,914,014,486.80 - Step 6: Final answer
x = 1,492,936,877.88
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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.