Finding the Fourth Proportional to 995,331,312.90, 1,493,743,465.35 and 510,407,511.30
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Solution
The fourth proportional to 995,331,312.90, 1,493,743,465.35 and 510,407,511.30 is: 765,994,071.31
Step by Step Solution
- Step 1: Write the proportion equation
995,331,312.90 : 1,493,743,465.35 = 510,407,511.30 : x - Step 2: Convert to fraction form
995,331,312.90/1,493,743,465.35 = 510,407,511.30/x - Step 3: Cross multiply
995,331,312.90x = 1,493,743,465.35 × 510,407,511.30 - Step 4: Simplify right side
995,331,312.90x = 762,417,884,669,931,264 - Step 5: Solve for x
x = 762,417,884,669,931,264/995,331,312.90 - Step 6: Final answer
x = 765,994,071.31
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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.