Finding the Fourth Proportional to 232,590,589.74, 320,977,166.20 and 128,172,397.66
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Solution
The fourth proportional to 232,590,589.74, 320,977,166.20 and 128,172,397.66 is: 176,879,094.86
Step by Step Solution
- Step 1: Write the proportion equation
232,590,589.74 : 320,977,166.20 = 128,172,397.66 : x - Step 2: Convert to fraction form
232,590,589.74/320,977,166.20 = 128,172,397.66/x - Step 3: Cross multiply
232,590,589.74x = 320,977,166.20 × 128,172,397.66 - Step 4: Simplify right side
232,590,589.74x = 41,140,412,985,966,312 - Step 5: Solve for x
x = 41,140,412,985,966,312/232,590,589.74 - Step 6: Final answer
x = 176,879,094.86
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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.