Finding the Fourth Proportional to 646,706,623.10, 970,059,934.65 and 186,659,800.70
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Solution
The fourth proportional to 646,706,623.10, 970,059,934.65 and 186,659,800.70 is: 279,989,701.05
Step by Step Solution
- Step 1: Write the proportion equation
646,706,623.10 : 970,059,934.65 = 186,659,800.70 : x - Step 2: Convert to fraction form
646,706,623.10/970,059,934.65 = 186,659,800.70/x - Step 3: Cross multiply
646,706,623.10x = 970,059,934.65 × 186,659,800.70 - Step 4: Simplify right side
646,706,623.10x = 181,071,194,068,824,000 - Step 5: Solve for x
x = 181,071,194,068,824,000/646,706,623.10 - Step 6: Final answer
x = 279,989,701.05
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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.