Finding the Fourth Proportional to 995,328,017.80, 1,492,992,026.70 and 688,534,750.60
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Solution
The fourth proportional to 995,328,017.80, 1,492,992,026.70 and 688,534,750.60 is: 1,032,802,125.90
Step by Step Solution
- Step 1: Write the proportion equation
995,328,017.80 : 1,492,992,026.70 = 688,534,750.60 : x - Step 2: Convert to fraction form
995,328,017.80/1,492,992,026.70 = 688,534,750.60/x - Step 3: Cross multiply
995,328,017.80x = 1,492,992,026.70 × 688,534,750.60 - Step 4: Simplify right side
995,328,017.80x = 1,027,976,892,751,673,088 - Step 5: Solve for x
x = 1,027,976,892,751,673,088/995,328,017.80 - Step 6: Final answer
x = 1,032,802,125.90
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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.