Finding the Fourth Proportional to 2,118,350,518.14, 2,923,350,609.06 and 1,165,840,926.06
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Solution
The fourth proportional to 2,118,350,518.14, 2,923,350,609.06 and 1,165,840,926.06 is: 1,608,875,279.18
Step by Step Solution
- Step 1: Write the proportion equation
2,118,350,518.14 : 2,923,350,609.06 = 1,165,840,926.06 : x - Step 2: Convert to fraction form
2,118,350,518.14/2,923,350,609.06 = 1,165,840,926.06/x - Step 3: Cross multiply
2,118,350,518.14x = 2,923,350,609.06 × 1,165,840,926.06 - Step 4: Simplify right side
2,118,350,518.14x = 3,408,161,781,264,574,976 - Step 5: Solve for x
x = 3,408,161,781,264,574,976/2,118,350,518.14 - Step 6: Final answer
x = 1,608,875,279.18
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.