Finding the Fourth Proportional to 315,028,223.70, 471,692,029.95 and 247,003,775.70
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Solution
The fourth proportional to 315,028,223.70, 471,692,029.95 and 247,003,775.70 is: 369,838,965.53
Step by Step Solution
- Step 1: Write the proportion equation
315,028,223.70 : 471,692,029.95 = 247,003,775.70 : x - Step 2: Convert to fraction form
315,028,223.70/471,692,029.95 = 247,003,775.70/x - Step 3: Cross multiply
315,028,223.70x = 471,692,029.95 × 247,003,775.70 - Step 4: Simplify right side
315,028,223.70x = 116,509,712,365,247,472 - Step 5: Solve for x
x = 116,509,712,365,247,472/315,028,223.70 - Step 6: Final answer
x = 369,838,965.53
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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.