Finding the Fourth Proportional to 1,318,475,749.35, 1,975,127,850.03 and 764,614,587.63
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Solution
The fourth proportional to 1,318,475,749.35, 1,975,127,850.03 and 764,614,587.63 is: 1,145,422,331.29
Step by Step Solution
- Step 1: Write the proportion equation
1,318,475,749.35 : 1,975,127,850.03 = 764,614,587.63 : x - Step 2: Convert to fraction form
1,318,475,749.35/1,975,127,850.03 = 764,614,587.63/x - Step 3: Cross multiply
1,318,475,749.35x = 1,975,127,850.03 × 764,614,587.63 - Step 4: Simplify right side
1,318,475,749.35x = 1,510,211,566,567,216,896 - Step 5: Solve for x
x = 1,510,211,566,567,216,896/1,318,475,749.35 - Step 6: Final answer
x = 1,145,422,331.29
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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.