Finding the Fourth Proportional to 313,138,649.13, 432,079,446.60 and 180,991,973.49
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Solution
The fourth proportional to 313,138,649.13, 432,079,446.60 and 180,991,973.49 is: 249,738,931.82
Step by Step Solution
- Step 1: Write the proportion equation
313,138,649.13 : 432,079,446.60 = 180,991,973.49 : x - Step 2: Convert to fraction form
313,138,649.13/432,079,446.60 = 180,991,973.49/x - Step 3: Cross multiply
313,138,649.13x = 432,079,446.60 × 180,991,973.49 - Step 4: Simplify right side
313,138,649.13x = 78,202,911,744,601,072 - Step 5: Solve for x
x = 78,202,911,744,601,072/313,138,649.13 - Step 6: Final answer
x = 249,738,931.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.