Finding the Fourth Proportional to 243,212,829.18, 335,657,709.05 and 138,806,520.81
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Solution
The fourth proportional to 243,212,829.18, 335,657,709.05 and 138,806,520.81 is: 191,566,698.74
Step by Step Solution
- Step 1: Write the proportion equation
243,212,829.18 : 335,657,709.05 = 138,806,520.81 : x - Step 2: Convert to fraction form
243,212,829.18/335,657,709.05 = 138,806,520.81/x - Step 3: Cross multiply
243,212,829.18x = 335,657,709.05 × 138,806,520.81 - Step 4: Simplify right side
243,212,829.18x = 46,591,478,776,285,752 - Step 5: Solve for x
x = 46,591,478,776,285,752/243,212,829.18 - Step 6: Final answer
x = 191,566,698.74
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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.