Finding the Fourth Proportional to 221,329,808.10, 331,994,712.15 and 144,888,617.70
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Solution
The fourth proportional to 221,329,808.10, 331,994,712.15 and 144,888,617.70 is: 217,332,926.55
Step by Step Solution
- Step 1: Write the proportion equation
221,329,808.10 : 331,994,712.15 = 144,888,617.70 : x - Step 2: Convert to fraction form
221,329,808.10/331,994,712.15 = 144,888,617.70/x - Step 3: Cross multiply
221,329,808.10x = 331,994,712.15 × 144,888,617.70 - Step 4: Simplify right side
221,329,808.10x = 48,102,254,927,122,888 - Step 5: Solve for x
x = 48,102,254,927,122,888/221,329,808.10 - Step 6: Final answer
x = 217,332,926.55
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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.