Finding the Fourth Proportional to 421,415,758,239.86, 581,554,176,772.74 and 228,727,970,890.84
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Solution
The fourth proportional to 421,415,758,239.86, 581,554,176,772.74 and 228,727,970,890.84 is: 315,644,833,434.57
Step by Step Solution
- Step 1: Write the proportion equation
421,415,758,239.86 : 581,554,176,772.74 = 228,727,970,890.84 : x - Step 2: Convert to fraction form
421,415,758,239.86/581,554,176,772.74 = 228,727,970,890.84/x - Step 3: Cross multiply
421,415,758,239.86x = 581,554,176,772.74 × 228,727,970,890.84 - Step 4: Simplify right side
421,415,758,239.86x = 133,017,706,816,321,697,611,776 - Step 5: Solve for x
x = 133,017,706,816,321,697,611,776/421,415,758,239.86 - Step 6: Final answer
x = 315,644,833,434.57
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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.