Finding the Fourth Proportional to 3,116,881.14, 4,302,012.06 and 1,828,136.70
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Solution
The fourth proportional to 3,116,881.14, 4,302,012.06 and 1,828,136.70 is: 2,523,248.65
Step by Step Solution
- Step 1: Write the proportion equation
3,116,881.14 : 4,302,012.06 = 1,828,136.70 : x - Step 2: Convert to fraction form
3,116,881.14/4,302,012.06 = 1,828,136.70/x - Step 3: Cross multiply
3,116,881.14x = 4,302,012.06 × 1,828,136.70 - Step 4: Simplify right side
3,116,881.14x = 7,864,666,130,728.60 - Step 5: Solve for x
x = 7,864,666,130,728.60/3,116,881.14 - Step 6: Final answer
x = 2,523,248.65
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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.