Finding the Fourth Proportional to 117,120,970.74, 161,626,954.95 and 64,913,377.02
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Solution
The fourth proportional to 117,120,970.74, 161,626,954.95 and 64,913,377.02 is: 89,580,468.78
Step by Step Solution
- Step 1: Write the proportion equation
117,120,970.74 : 161,626,954.95 = 64,913,377.02 : x - Step 2: Convert to fraction form
117,120,970.74/161,626,954.95 = 64,913,377.02/x - Step 3: Cross multiply
117,120,970.74x = 161,626,954.95 × 64,913,377.02 - Step 4: Simplify right side
117,120,970.74x = 10,491,751,463,263,906 - Step 5: Solve for x
x = 10,491,751,463,263,906/117,120,970.74 - Step 6: Final answer
x = 89,580,468.78
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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.