Finding the Fourth Proportional to 287,092,331.80, 430,638,497.70 and 134,037,323.80
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Solution
The fourth proportional to 287,092,331.80, 430,638,497.70 and 134,037,323.80 is: 201,055,985.70
Step by Step Solution
- Step 1: Write the proportion equation
287,092,331.80 : 430,638,497.70 = 134,037,323.80 : x - Step 2: Convert to fraction form
287,092,331.80/430,638,497.70 = 134,037,323.80/x - Step 3: Cross multiply
287,092,331.80x = 430,638,497.70 × 134,037,323.80 - Step 4: Simplify right side
287,092,331.80x = 57,721,631,756,960,456 - Step 5: Solve for x
x = 57,721,631,756,960,456/287,092,331.80 - Step 6: Final answer
x = 201,055,985.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.