Finding the Fourth Proportional to 784,081,350.80, 1,176,122,026.20 and 661,637,344.40
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Solution
The fourth proportional to 784,081,350.80, 1,176,122,026.20 and 661,637,344.40 is: 992,456,016.60
Step by Step Solution
- Step 1: Write the proportion equation
784,081,350.80 : 1,176,122,026.20 = 661,637,344.40 : x - Step 2: Convert to fraction form
784,081,350.80/1,176,122,026.20 = 661,637,344.40/x - Step 3: Cross multiply
784,081,350.80x = 1,176,122,026.20 × 661,637,344.40 - Step 4: Simplify right side
784,081,350.80x = 778,166,254,105,315,200 - Step 5: Solve for x
x = 778,166,254,105,315,200/784,081,350.80 - Step 6: Final answer
x = 992,456,016.60
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Double scale
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Similar ratio
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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.