Finding the Fourth Proportional to 319,672,829.84, 441,146,883.30 and 172,995,113.84
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Solution
The fourth proportional to 319,672,829.84, 441,146,883.30 and 172,995,113.84 is: 238,732,379.40
Step by Step Solution
- Step 1: Write the proportion equation
319,672,829.84 : 441,146,883.30 = 172,995,113.84 : x - Step 2: Convert to fraction form
319,672,829.84/441,146,883.30 = 172,995,113.84/x - Step 3: Cross multiply
319,672,829.84x = 441,146,883.30 × 172,995,113.84 - Step 4: Simplify right side
319,672,829.84x = 76,316,255,296,644,704 - Step 5: Solve for x
x = 76,316,255,296,644,704/319,672,829.84 - Step 6: Final answer
x = 238,732,379.40
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.