Finding the Fourth Proportional to 136,695,028.74, 188,638,460.73 and 73,971,082.50
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Solution
The fourth proportional to 136,695,028.74, 188,638,460.73 and 73,971,082.50 is: 102,079,726.45
Step by Step Solution
- Step 1: Write the proportion equation
136,695,028.74 : 188,638,460.73 = 73,971,082.50 : x - Step 2: Convert to fraction form
136,695,028.74/188,638,460.73 = 73,971,082.50/x - Step 3: Cross multiply
136,695,028.74x = 188,638,460.73 × 73,971,082.50 - Step 4: Simplify right side
136,695,028.74x = 13,953,791,141,331,840 - Step 5: Solve for x
x = 13,953,791,141,331,840/136,695,028.74 - Step 6: Final answer
x = 102,079,726.45
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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.