Finding the Fourth Proportional to 388,509,032,156.22, 536,106,484,588.80 and 214,890,434,850.70
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Solution
The fourth proportional to 388,509,032,156.22, 536,106,484,588.80 and 214,890,434,850.70 is: 296,528,899,109.98
Step by Step Solution
- Step 1: Write the proportion equation
388,509,032,156.22 : 536,106,484,588.80 = 214,890,434,850.70 : x - Step 2: Convert to fraction form
388,509,032,156.22/536,106,484,588.80 = 214,890,434,850.70/x - Step 3: Cross multiply
388,509,032,156.22x = 536,106,484,588.80 × 214,890,434,850.70 - Step 4: Simplify right side
388,509,032,156.22x = 115,204,155,599,567,338,864,640 - Step 5: Solve for x
x = 115,204,155,599,567,338,864,640/388,509,032,156.22 - Step 6: Final answer
x = 296,528,899,109.98
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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.