Finding the Fourth Proportional to 229,139,846.87, 316,239,914.68 and 128,684,793.02
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Solution
The fourth proportional to 229,139,846.87, 316,239,914.68 and 128,684,793.02 is: 177,600,135.99
Step by Step Solution
- Step 1: Write the proportion equation
229,139,846.87 : 316,239,914.68 = 128,684,793.02 : x - Step 2: Convert to fraction form
229,139,846.87/316,239,914.68 = 128,684,793.02/x - Step 3: Cross multiply
229,139,846.87x = 316,239,914.68 × 128,684,793.02 - Step 4: Simplify right side
229,139,846.87x = 40,695,267,963,355,352 - Step 5: Solve for x
x = 40,695,267,963,355,352/229,139,846.87 - Step 6: Final answer
x = 177,600,135.99
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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.