Finding the Fourth Proportional to 377,251,992.84, 520,607,669.94 and 209,984,647.08
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Solution
The fourth proportional to 377,251,992.84, 520,607,669.94 and 209,984,647.08 is: 289,778,768.34
Step by Step Solution
- Step 1: Write the proportion equation
377,251,992.84 : 520,607,669.94 = 209,984,647.08 : x - Step 2: Convert to fraction form
377,251,992.84/520,607,669.94 = 209,984,647.08/x - Step 3: Cross multiply
377,251,992.84x = 520,607,669.94 × 209,984,647.08 - Step 4: Simplify right side
377,251,992.84x = 109,319,617,839,492,032 - Step 5: Solve for x
x = 109,319,617,839,492,032/377,251,992.84 - Step 6: Final answer
x = 289,778,768.34
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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.