Finding the Fourth Proportional to 421,415,758,237.86, 581,554,176,769.98 and 228,727,970,888.84
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Solution
The fourth proportional to 421,415,758,237.86, 581,554,176,769.98 and 228,727,970,888.84 is: 315,644,833,431.81
Step by Step Solution
- Step 1: Write the proportion equation
421,415,758,237.86 : 581,554,176,769.98 = 228,727,970,888.84 : x - Step 2: Convert to fraction form
421,415,758,237.86/581,554,176,769.98 = 228,727,970,888.84/x - Step 3: Cross multiply
421,415,758,237.86x = 581,554,176,769.98 × 228,727,970,888.84 - Step 4: Simplify right side
421,415,758,237.86x = 133,017,706,814,527,290,474,496 - Step 5: Solve for x
x = 133,017,706,814,527,290,474,496/421,415,758,237.86 - Step 6: Final answer
x = 315,644,833,431.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.