Finding the Fourth Proportional to 128,065,272.14, 176,730,038.12 and 69,327,893.68
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Solution
The fourth proportional to 128,065,272.14, 176,730,038.12 and 69,327,893.68 is: 95,672,473.01
Step by Step Solution
- Step 1: Write the proportion equation
128,065,272.14 : 176,730,038.12 = 69,327,893.68 : x - Step 2: Convert to fraction form
128,065,272.14/176,730,038.12 = 69,327,893.68/x - Step 3: Cross multiply
128,065,272.14x = 176,730,038.12 × 69,327,893.68 - Step 4: Simplify right side
128,065,272.14x = 12,252,321,292,845,708 - Step 5: Solve for x
x = 12,252,321,292,845,708/128,065,272.14 - Step 6: Final answer
x = 95,672,473.01
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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.