Finding the Fourth Proportional to 698,219,390.48, 1,047,584,465.64 and 324,905,320.42
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Solution
The fourth proportional to 698,219,390.48, 1,047,584,465.64 and 324,905,320.42 is: 487,476,817.63
Step by Step Solution
- Step 1: Write the proportion equation
698,219,390.48 : 1,047,584,465.64 = 324,905,320.42 : x - Step 2: Convert to fraction form
698,219,390.48/1,047,584,465.64 = 324,905,320.42/x - Step 3: Cross multiply
698,219,390.48x = 1,047,584,465.64 × 324,905,320.42 - Step 4: Simplify right side
698,219,390.48x = 340,365,766,473,159,744 - Step 5: Solve for x
x = 340,365,766,473,159,744/698,219,390.48 - Step 6: Final answer
x = 487,476,817.63
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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.