Finding the Fourth Proportional to 7,509,640,987.20, 11,268,492,559.20 and 3,148,014,158.40
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Solution
The fourth proportional to 7,509,640,987.20, 11,268,492,559.20 and 3,148,014,158.40 is: 4,723,711,050.99
Step by Step Solution
- Step 1: Write the proportion equation
7,509,640,987.20 : 11,268,492,559.20 = 3,148,014,158.40 : x - Step 2: Convert to fraction form
7,509,640,987.20/11,268,492,559.20 = 3,148,014,158.40/x - Step 3: Cross multiply
7,509,640,987.20x = 11,268,492,559.20 × 3,148,014,158.40 - Step 4: Simplify right side
7,509,640,987.20x = 35,473,374,120,186,654,720 - Step 5: Solve for x
x = 35,473,374,120,186,654,720/7,509,640,987.20 - Step 6: Final answer
x = 4,723,711,050.99
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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.