Finding the Fourth Proportional to 211,706,895.36, 292,187,112.96 and 129,248,482.56
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Solution
The fourth proportional to 211,706,895.36, 292,187,112.96 and 129,248,482.56 is: 178,382,196.34
Step by Step Solution
- Step 1: Write the proportion equation
211,706,895.36 : 292,187,112.96 = 129,248,482.56 : x - Step 2: Convert to fraction form
211,706,895.36/292,187,112.96 = 129,248,482.56/x - Step 3: Cross multiply
211,706,895.36x = 292,187,112.96 × 129,248,482.56 - Step 4: Simplify right side
211,706,895.36x = 37,764,740,973,667,304 - Step 5: Solve for x
x = 37,764,740,973,667,304/211,706,895.36 - Step 6: Final answer
x = 178,382,196.34
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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.