Finding the Fourth Proportional to 161,778,868, 242,283,104.01 and 103,305,425.65
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Solution
The fourth proportional to 161,778,868, 242,283,104.01 and 103,305,425.65 is: 154,712,166.66
Step by Step Solution
- Step 1: Write the proportion equation
161,778,868 : 242,283,104.01 = 103,305,425.65 : x - Step 2: Convert to fraction form
161,778,868/242,283,104.01 = 103,305,425.65/x - Step 3: Cross multiply
161,778,868x = 242,283,104.01 × 103,305,425.65 - Step 4: Simplify right side
161,778,868x = 25,029,159,187,556,272 - Step 5: Solve for x
x = 25,029,159,187,556,272/161,778,868 - Step 6: Final answer
x = 154,712,166.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.