Finding the Fourth Proportional to 19,658,459.80, 29,487,689.70 and 17,745,272.20
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Solution
The fourth proportional to 19,658,459.80, 29,487,689.70 and 17,745,272.20 is: 26,617,908.30
Step by Step Solution
- Step 1: Write the proportion equation
19,658,459.80 : 29,487,689.70 = 17,745,272.20 : x - Step 2: Convert to fraction form
19,658,459.80/29,487,689.70 = 17,745,272.20/x - Step 3: Cross multiply
19,658,459.80x = 29,487,689.70 × 17,745,272.20 - Step 4: Simplify right side
19,658,459.80x = 523,267,080,275,636.31 - Step 5: Solve for x
x = 523,267,080,275,636.31/19,658,459.80 - Step 6: Final answer
x = 26,617,908.30
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1.5x scale
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.