Finding the Fourth Proportional to 75,211,967.97, 103,754,316.99 and 49,121,757.81
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Solution
The fourth proportional to 75,211,967.97, 103,754,316.99 and 49,121,757.81 is: 67,763,077.71
Step by Step Solution
- Step 1: Write the proportion equation
75,211,967.97 : 103,754,316.99 = 49,121,757.81 : x - Step 2: Convert to fraction form
75,211,967.97/103,754,316.99 = 49,121,757.81/x - Step 3: Cross multiply
75,211,967.97x = 103,754,316.99 × 49,121,757.81 - Step 4: Simplify right side
75,211,967.97x = 5,096,594,430,160,368 - Step 5: Solve for x
x = 5,096,594,430,160,368/75,211,967.97 - Step 6: Final answer
x = 67,763,077.71
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.