Finding the Fourth Proportional to 153,281,868.24, 211,497,401.24 and 88,079,175.12
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Solution
The fourth proportional to 153,281,868.24, 211,497,401.24 and 88,079,175.12 is: 121,531,116.86
Step by Step Solution
- Step 1: Write the proportion equation
153,281,868.24 : 211,497,401.24 = 88,079,175.12 : x - Step 2: Convert to fraction form
153,281,868.24/211,497,401.24 = 88,079,175.12/x - Step 3: Cross multiply
153,281,868.24x = 211,497,401.24 × 88,079,175.12 - Step 4: Simplify right side
153,281,868.24x = 18,628,516,641,242,868 - Step 5: Solve for x
x = 18,628,516,641,242,868/153,281,868.24 - Step 6: Final answer
x = 121,531,116.86
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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.