Finding the Fourth Proportional to 19,872,080.80, 29,808,121.20 and 17,604,599.20
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Solution
The fourth proportional to 19,872,080.80, 29,808,121.20 and 17,604,599.20 is: 26,406,898.80
Step by Step Solution
- Step 1: Write the proportion equation
19,872,080.80 : 29,808,121.20 = 17,604,599.20 : x - Step 2: Convert to fraction form
19,872,080.80/29,808,121.20 = 17,604,599.20/x - Step 3: Cross multiply
19,872,080.80x = 29,808,121.20 × 17,604,599.20 - Step 4: Simplify right side
19,872,080.80x = 524,760,026,631,023 - Step 5: Solve for x
x = 524,760,026,631,023/19,872,080.80 - Step 6: Final answer
x = 26,406,898.80
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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.