Finding the Fourth Proportional to 309,277,152.95, 426,811,347.78 and 188,582,214.79
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Solution
The fourth proportional to 309,277,152.95, 426,811,347.78 and 188,582,214.79 is: 260,248,868.99
Step by Step Solution
- Step 1: Write the proportion equation
309,277,152.95 : 426,811,347.78 = 188,582,214.79 : x - Step 2: Convert to fraction form
309,277,152.95/426,811,347.78 = 188,582,214.79/x - Step 3: Cross multiply
309,277,152.95x = 426,811,347.78 × 188,582,214.79 - Step 4: Simplify right side
309,277,152.95x = 80,489,029,259,723,280 - Step 5: Solve for x
x = 80,489,029,259,723,280/309,277,152.95 - Step 6: Final answer
x = 260,248,868.99
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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.