Finding the Fourth Proportional to 82,911,315.40, 124,366,973.10 and 39,758,306.20
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Solution
The fourth proportional to 82,911,315.40, 124,366,973.10 and 39,758,306.20 is: 59,637,459.30
Step by Step Solution
- Step 1: Write the proportion equation
82,911,315.40 : 124,366,973.10 = 39,758,306.20 : x - Step 2: Convert to fraction form
82,911,315.40/124,366,973.10 = 39,758,306.20/x - Step 3: Cross multiply
82,911,315.40x = 124,366,973.10 × 39,758,306.20 - Step 4: Simplify right side
82,911,315.40x = 4,944,620,197,676,963 - Step 5: Solve for x
x = 4,944,620,197,676,963/82,911,315.40 - Step 6: Final answer
x = 59,637,459.30
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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.