Finding the Fourth Proportional to 1,235,413,764.78, 1,853,119,159.94 and 315,290,201.82
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Solution
The fourth proportional to 1,235,413,764.78, 1,853,119,159.94 and 315,290,201.82 is: 472,934,923.17
Step by Step Solution
- Step 1: Write the proportion equation
1,235,413,764.78 : 1,853,119,159.94 = 315,290,201.82 : x - Step 2: Convert to fraction form
1,235,413,764.78/1,853,119,159.94 = 315,290,201.82/x - Step 3: Cross multiply
1,235,413,764.78x = 1,853,119,159.94 × 315,290,201.82 - Step 4: Simplify right side
1,235,413,764.78x = 584,270,313,933,991,424 - Step 5: Solve for x
x = 584,270,313,933,991,424/1,235,413,764.78 - Step 6: Final answer
x = 472,934,923.17
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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.