Finding the Fourth Proportional to 147,510,905.19, 203,559,713.96 and 81,429,985.14
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Solution
The fourth proportional to 147,510,905.19, 203,559,713.96 and 81,429,985.14 is: 112,370,434.32
Step by Step Solution
- Step 1: Write the proportion equation
147,510,905.19 : 203,559,713.96 = 81,429,985.14 : x - Step 2: Convert to fraction form
147,510,905.19/203,559,713.96 = 81,429,985.14/x - Step 3: Cross multiply
147,510,905.19x = 203,559,713.96 × 81,429,985.14 - Step 4: Simplify right side
147,510,905.19x = 16,575,864,482,458,302 - Step 5: Solve for x
x = 16,575,864,482,458,302/147,510,905.19 - Step 6: Final answer
x = 112,370,434.32
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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.