Finding the Fourth Proportional to 154,756,325.97, 213,563,722.62 and 85,140,212.18
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Solution
The fourth proportional to 154,756,325.97, 213,563,722.62 and 85,140,212.18 is: 117,493,488.83
Step by Step Solution
- Step 1: Write the proportion equation
154,756,325.97 : 213,563,722.62 = 85,140,212.18 : x - Step 2: Convert to fraction form
154,756,325.97/213,563,722.62 = 85,140,212.18/x - Step 3: Cross multiply
154,756,325.97x = 213,563,722.62 × 85,140,212.18 - Step 4: Simplify right side
154,756,325.97x = 18,182,860,656,749,648 - Step 5: Solve for x
x = 18,182,860,656,749,648/154,756,325.97 - Step 6: Final answer
x = 117,493,488.83
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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.