Finding the Fourth Proportional to 331,361,865.95, 497,114,547.11 and 126,889,948.49
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Solution
The fourth proportional to 331,361,865.95, 497,114,547.11 and 126,889,948.49 is: 190,362,397.60
Step by Step Solution
- Step 1: Write the proportion equation
331,361,865.95 : 497,114,547.11 = 126,889,948.49 : x - Step 2: Convert to fraction form
331,361,865.95/497,114,547.11 = 126,889,948.49/x - Step 3: Cross multiply
331,361,865.95x = 497,114,547.11 × 126,889,948.49 - Step 4: Simplify right side
331,361,865.95x = 63,078,839,273,297,560 - Step 5: Solve for x
x = 63,078,839,273,297,560/331,361,865.95 - Step 6: Final answer
x = 190,362,397.60
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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.