Finding the Fourth Proportional to 68,338,012.87, 94,306,396.80 and 38,574,925.95
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Solution
The fourth proportional to 68,338,012.87, 94,306,396.80 and 38,574,925.95 is: 53,233,363.41
Step by Step Solution
- Step 1: Write the proportion equation
68,338,012.87 : 94,306,396.80 = 38,574,925.95 : x - Step 2: Convert to fraction form
68,338,012.87/94,306,396.80 = 38,574,925.95/x - Step 3: Cross multiply
68,338,012.87x = 94,306,396.80 × 38,574,925.95 - Step 4: Simplify right side
68,338,012.87x = 3,637,862,273,669,621.50 - Step 5: Solve for x
x = 3,637,862,273,669,621.50/68,338,012.87 - Step 6: Final answer
x = 53,233,363.41
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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.