Finding the Fourth Proportional to 21,397,248.95, 29,528,203.58 and 12,230,088.53
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Solution
The fourth proportional to 21,397,248.95, 29,528,203.58 and 12,230,088.53 is: 16,877,522.18
Step by Step Solution
- Step 1: Write the proportion equation
21,397,248.95 : 29,528,203.58 = 12,230,088.53 : x - Step 2: Convert to fraction form
21,397,248.95/29,528,203.58 = 12,230,088.53/x - Step 3: Cross multiply
21,397,248.95x = 29,528,203.58 × 12,230,088.53 - Step 4: Simplify right side
21,397,248.95x = 361,132,543,706,471.50 - Step 5: Solve for x
x = 361,132,543,706,471.50/21,397,248.95 - Step 6: Final answer
x = 16,877,522.18
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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.