Finding the Fourth Proportional to 19,044,493.84, 28,518,245.70 and 12,547,873.12
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Solution
The fourth proportional to 19,044,493.84, 28,518,245.70 and 12,547,873.12 is: 18,789,857.67
Step by Step Solution
- Step 1: Write the proportion equation
19,044,493.84 : 28,518,245.70 = 12,547,873.12 : x - Step 2: Convert to fraction form
19,044,493.84/28,518,245.70 = 12,547,873.12/x - Step 3: Cross multiply
19,044,493.84x = 28,518,245.70 × 12,547,873.12 - Step 4: Simplify right side
19,044,493.84x = 357,843,328,648,585.56 - Step 5: Solve for x
x = 357,843,328,648,585.56/19,044,493.84 - Step 6: Final answer
x = 18,789,857.67
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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.