Finding the Fourth Proportional to 318,125,278,632.34, 439,012,768,553.31 and 173,609,408,672.02
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Solution
The fourth proportional to 318,125,278,632.34, 439,012,768,553.31 and 173,609,408,672.02 is: 239,580,920,685.31
Step by Step Solution
- Step 1: Write the proportion equation
318,125,278,632.34 : 439,012,768,553.31 = 173,609,408,672.02 : x - Step 2: Convert to fraction form
318,125,278,632.34/439,012,768,553.31 = 173,609,408,672.02/x - Step 3: Cross multiply
318,125,278,632.34x = 439,012,768,553.31 × 173,609,408,672.02 - Step 4: Simplify right side
318,125,278,632.34x = 76,216,747,148,006,517,637,120 - Step 5: Solve for x
x = 76,216,747,148,006,517,637,120/318,125,278,632.34 - Step 6: Final answer
x = 239,580,920,685.31
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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.