Finding the Fourth Proportional to 139,953,858.71, 193,174,739.61 and 81,235,441.07
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Solution
The fourth proportional to 139,953,858.71, 193,174,739.61 and 81,235,441.07 is: 112,127,206.21
Step by Step Solution
- Step 1: Write the proportion equation
139,953,858.71 : 193,174,739.61 = 81,235,441.07 : x - Step 2: Convert to fraction form
139,953,858.71/193,174,739.61 = 81,235,441.07/x - Step 3: Cross multiply
139,953,858.71x = 193,174,739.61 × 81,235,441.07 - Step 4: Simplify right side
139,953,858.71x = 15,692,635,175,979,054 - Step 5: Solve for x
x = 15,692,635,175,979,054/139,953,858.71 - Step 6: Final answer
x = 112,127,206.21
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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.