Finding the Fourth Proportional to 885,486,276.80, 1,324,646,234.40 and 777,990,852.80
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Solution
The fourth proportional to 885,486,276.80, 1,324,646,234.40 and 777,990,852.80 is: 1,163,838,085.99
Step by Step Solution
- Step 1: Write the proportion equation
885,486,276.80 : 1,324,646,234.40 = 777,990,852.80 : x - Step 2: Convert to fraction form
885,486,276.80/1,324,646,234.40 = 777,990,852.80/x - Step 3: Cross multiply
885,486,276.80x = 1,324,646,234.40 × 777,990,852.80 - Step 4: Simplify right side
885,486,276.80x = 1,030,562,653,559,164,672 - Step 5: Solve for x
x = 1,030,562,653,559,164,672/885,486,276.80 - Step 6: Final answer
x = 1,163,838,085.99
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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.