Finding the Fourth Proportional to 7,243,344,146.80, 10,865,016,220.20 and 6,898,970,378.80
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Solution
The fourth proportional to 7,243,344,146.80, 10,865,016,220.20 and 6,898,970,378.80 is: 10,348,455,568.20
Step by Step Solution
- Step 1: Write the proportion equation
7,243,344,146.80 : 10,865,016,220.20 = 6,898,970,378.80 : x - Step 2: Convert to fraction form
7,243,344,146.80/10,865,016,220.20 = 6,898,970,378.80/x - Step 3: Cross multiply
7,243,344,146.80x = 10,865,016,220.20 × 6,898,970,378.80 - Step 4: Simplify right side
7,243,344,146.80x = 74,957,425,068,341,346,304 - Step 5: Solve for x
x = 74,957,425,068,341,346,304/7,243,344,146.80 - Step 6: Final answer
x = 10,348,455,568.20
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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.