Finding the Fourth Proportional to 421,415,758,239.36, 581,554,176,772.05 and 228,727,970,890.35
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Solution
The fourth proportional to 421,415,758,239.36, 581,554,176,772.05 and 228,727,970,890.35 is: 315,644,833,433.89
Step by Step Solution
- Step 1: Write the proportion equation
421,415,758,239.36 : 581,554,176,772.05 = 228,727,970,890.35 : x - Step 2: Convert to fraction form
421,415,758,239.36/581,554,176,772.05 = 228,727,970,890.35/x - Step 3: Cross multiply
421,415,758,239.36x = 581,554,176,772.05 × 228,727,970,890.35 - Step 4: Simplify right side
421,415,758,239.36x = 133,017,706,815,878,930,104,320 - Step 5: Solve for x
x = 133,017,706,815,878,930,104,320/421,415,758,239.36 - Step 6: Final answer
x = 315,644,833,433.89
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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.