Finding the Fourth Proportional to 153,532,756.48, 211,851,528.19 and 87,444,829.62
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Solution
The fourth proportional to 153,532,756.48, 211,851,528.19 and 87,444,829.62 is: 120,660,380.32
Step by Step Solution
- Step 1: Write the proportion equation
153,532,756.48 : 211,851,528.19 = 87,444,829.62 : x - Step 2: Convert to fraction form
153,532,756.48/211,851,528.19 = 87,444,829.62/x - Step 3: Cross multiply
153,532,756.48x = 211,851,528.19 × 87,444,829.62 - Step 4: Simplify right side
153,532,756.48x = 18,525,320,787,934,464 - Step 5: Solve for x
x = 18,525,320,787,934,464/153,532,756.48 - Step 6: Final answer
x = 120,660,380.32
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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.