Finding the Fourth Proportional to 888,521,449.47, 1,226,198,143.68 and 492,044,439.02
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Solution
The fourth proportional to 888,521,449.47, 1,226,198,143.68 and 492,044,439.02 is: 679,042,670.39
Step by Step Solution
- Step 1: Write the proportion equation
888,521,449.47 : 1,226,198,143.68 = 492,044,439.02 : x - Step 2: Convert to fraction form
888,521,449.47/1,226,198,143.68 = 492,044,439.02/x - Step 3: Cross multiply
888,521,449.47x = 1,226,198,143.68 × 492,044,439.02 - Step 4: Simplify right side
888,521,449.47x = 603,343,977,740,745,728 - Step 5: Solve for x
x = 603,343,977,740,745,728/888,521,449.47 - Step 6: Final answer
x = 679,042,670.39
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1.5x scale
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.