Finding the Fourth Proportional to 999,972,363.12, 1,499,947,347.24 and 353,588,941.68
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Solution
The fourth proportional to 999,972,363.12, 1,499,947,347.24 and 353,588,941.68 is: 530,379,453.12
Step by Step Solution
- Step 1: Write the proportion equation
999,972,363.12 : 1,499,947,347.24 = 353,588,941.68 : x - Step 2: Convert to fraction form
999,972,363.12/1,499,947,347.24 = 353,588,941.68/x - Step 3: Cross multiply
999,972,363.12x = 1,499,947,347.24 × 353,588,941.68 - Step 4: Simplify right side
999,972,363.12x = 530,364,795,086,315,072 - Step 5: Solve for x
x = 530,364,795,086,315,072/999,972,363.12 - Step 6: Final answer
x = 530,379,453.12
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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.