Finding the Fourth Proportional to 287,221,289.50, 430,831,943.97 and 71,810,537.50
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Solution
The fourth proportional to 287,221,289.50, 430,831,943.97 and 71,810,537.50 is: 107,715,808.68
Step by Step Solution
- Step 1: Write the proportion equation
287,221,289.50 : 430,831,943.97 = 71,810,537.50 : x - Step 2: Convert to fraction form
287,221,289.50/430,831,943.97 = 71,810,537.50/x - Step 3: Cross multiply
287,221,289.50x = 430,831,943.97 × 71,810,537.50 - Step 4: Simplify right side
287,221,289.50x = 30,938,273,468,655,584 - Step 5: Solve for x
x = 30,938,273,468,655,584/287,221,289.50 - Step 6: Final answer
x = 107,715,808.68
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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.