Finding the Fourth Proportional to 1,235,413,760.90, 1,853,119,154.14 and 315,290,197.94
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Solution
The fourth proportional to 1,235,413,760.90, 1,853,119,154.14 and 315,290,197.94 is: 472,934,917.35
Step by Step Solution
- Step 1: Write the proportion equation
1,235,413,760.90 : 1,853,119,154.14 = 315,290,197.94 : x - Step 2: Convert to fraction form
1,235,413,760.90/1,853,119,154.14 = 315,290,197.94/x - Step 3: Cross multiply
1,235,413,760.90x = 1,853,119,154.14 × 315,290,197.94 - Step 4: Simplify right side
1,235,413,760.90x = 584,270,304,905,152,128 - Step 5: Solve for x
x = 584,270,304,905,152,128/1,235,413,760.90 - Step 6: Final answer
x = 472,934,917.35
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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.