Finding the Fourth Proportional to 347,639,563.74, 521,378,447.79 and 129,392,688.27
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Solution
The fourth proportional to 347,639,563.74, 521,378,447.79 and 129,392,688.27 is: 194,058,921.95
Step by Step Solution
- Step 1: Write the proportion equation
347,639,563.74 : 521,378,447.79 = 129,392,688.27 : x - Step 2: Convert to fraction form
347,639,563.74/521,378,447.79 = 129,392,688.27/x - Step 3: Cross multiply
347,639,563.74x = 521,378,447.79 × 129,392,688.27 - Step 4: Simplify right side
347,639,563.74x = 67,462,558,965,587,944 - Step 5: Solve for x
x = 67,462,558,965,587,944/347,639,563.74 - Step 6: Final answer
x = 194,058,921.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.