Finding the Fourth Proportional to 157,465,349.40, 236,198,024.10 and 138,971,202.60
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Solution
The fourth proportional to 157,465,349.40, 236,198,024.10 and 138,971,202.60 is: 208,456,803.90
Step by Step Solution
- Step 1: Write the proportion equation
157,465,349.40 : 236,198,024.10 = 138,971,202.60 : x - Step 2: Convert to fraction form
157,465,349.40/236,198,024.10 = 138,971,202.60/x - Step 3: Cross multiply
157,465,349.40x = 236,198,024.10 × 138,971,202.60 - Step 4: Simplify right side
157,465,349.40x = 32,824,723,460,920,780 - Step 5: Solve for x
x = 32,824,723,460,920,780/157,465,349.40 - Step 6: Final answer
x = 208,456,803.90
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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.