Finding the Fourth Proportional to 75,209,503.86, 103,750,916.04 and 49,119,293.70
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Solution
The fourth proportional to 75,209,503.86, 103,750,916.04 and 49,119,293.70 is: 67,759,677.37
Step by Step Solution
- Step 1: Write the proportion equation
75,209,503.86 : 103,750,916.04 = 49,119,293.70 : x - Step 2: Convert to fraction form
75,209,503.86/103,750,916.04 = 49,119,293.70/x - Step 3: Cross multiply
75,209,503.86x = 103,750,916.04 × 49,119,293.70 - Step 4: Simplify right side
75,209,503.86x = 5,096,171,716,612,802 - Step 5: Solve for x
x = 5,096,171,716,612,802/75,209,503.86 - Step 6: Final answer
x = 67,759,677.37
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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.