Finding the Fourth Proportional to 112,913,178.18, 155,822,872.68 and 63,357,217.08
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Solution
The fourth proportional to 112,913,178.18, 155,822,872.68 and 63,357,217.08 is: 87,434,467.17
Step by Step Solution
- Step 1: Write the proportion equation
112,913,178.18 : 155,822,872.68 = 63,357,217.08 : x - Step 2: Convert to fraction form
112,913,178.18/155,822,872.68 = 63,357,217.08/x - Step 3: Cross multiply
112,913,178.18x = 155,822,872.68 × 63,357,217.08 - Step 4: Simplify right side
112,913,178.18x = 9,872,503,570,415,962 - Step 5: Solve for x
x = 9,872,503,570,415,962/112,913,178.18 - Step 6: Final answer
x = 87,434,467.17
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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.