Finding the Fourth Proportional to 209,953,973.84, 289,736,663.40 and 117,134,496.08
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Solution
The fourth proportional to 209,953,973.84, 289,736,663.40 and 117,134,496.08 is: 161,645,704.73
Step by Step Solution
- Step 1: Write the proportion equation
209,953,973.84 : 289,736,663.40 = 117,134,496.08 : x - Step 2: Convert to fraction form
209,953,973.84/289,736,663.40 = 117,134,496.08/x - Step 3: Cross multiply
209,953,973.84x = 289,736,663.40 × 117,134,496.08 - Step 4: Simplify right side
209,953,973.84x = 33,938,158,063,259,576 - Step 5: Solve for x
x = 33,938,158,063,259,576/209,953,973.84 - Step 6: Final answer
x = 161,645,704.73
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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.