Finding the Fourth Proportional to 1,270,263,830.49, 1,905,184,408.59 and 384,738,652.67
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Solution
The fourth proportional to 1,270,263,830.49, 1,905,184,408.59 and 384,738,652.67 is: 577,043,969.02
Step by Step Solution
- Step 1: Write the proportion equation
1,270,263,830.49 : 1,905,184,408.59 = 384,738,652.67 : x - Step 2: Convert to fraction form
1,270,263,830.49/1,905,184,408.59 = 384,738,652.67/x - Step 3: Cross multiply
1,270,263,830.49x = 1,905,184,408.59 × 384,738,652.67 - Step 4: Simplify right side
1,270,263,830.49x = 732,998,082,448,807,424 - Step 5: Solve for x
x = 732,998,082,448,807,424/1,270,263,830.49 - Step 6: Final answer
x = 577,043,969.02
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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.