Finding the Fourth Proportional to 100,926,309.69, 139,278,363.57 and 54,516,564
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Solution
The fourth proportional to 100,926,309.69, 139,278,363.57 and 54,516,564 is: 75,232,888.68
Step by Step Solution
- Step 1: Write the proportion equation
100,926,309.69 : 139,278,363.57 = 54,516,564 : x - Step 2: Convert to fraction form
100,926,309.69/139,278,363.57 = 54,516,564/x - Step 3: Cross multiply
100,926,309.69x = 139,278,363.57 × 54,516,564 - Step 4: Simplify right side
100,926,309.69x = 7,592,977,821,379,173 - Step 5: Solve for x
x = 7,592,977,821,379,173/100,926,309.69 - Step 6: Final answer
x = 75,232,888.68
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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.