Finding the Fourth Proportional to 233,113,623.57, 321,688,351.10 and 128,689,447.41
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Solution
The fourth proportional to 233,113,623.57, 321,688,351.10 and 128,689,447.41 is: 177,586,772.95
Step by Step Solution
- Step 1: Write the proportion equation
233,113,623.57 : 321,688,351.10 = 128,689,447.41 : x - Step 2: Convert to fraction form
233,113,623.57/321,688,351.10 = 128,689,447.41/x - Step 3: Cross multiply
233,113,623.57x = 321,688,351.10 × 128,689,447.41 - Step 4: Simplify right side
233,113,623.57x = 41,397,896,140,649,624 - Step 5: Solve for x
x = 41,397,896,140,649,624/233,113,623.57 - Step 6: Final answer
x = 177,586,772.95
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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.