Finding the Fourth Proportional to 777,014,788.90, 1,165,495,226.55 and 194,754,129.70
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Solution
The fourth proportional to 777,014,788.90, 1,165,495,226.55 and 194,754,129.70 is: 292,124,437.99
Step by Step Solution
- Step 1: Write the proportion equation
777,014,788.90 : 1,165,495,226.55 = 194,754,129.70 : x - Step 2: Convert to fraction form
777,014,788.90/1,165,495,226.55 = 194,754,129.70/x - Step 3: Cross multiply
777,014,788.90x = 1,165,495,226.55 × 194,754,129.70 - Step 4: Simplify right side
777,014,788.90x = 226,985,008,516,249,568 - Step 5: Solve for x
x = 226,985,008,516,249,568/777,014,788.90 - Step 6: Final answer
x = 292,124,437.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.