Finding the Fourth Proportional to 972,695,439.99, 1,459,132,853.94 and 317,649,899.31
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Solution
The fourth proportional to 972,695,439.99, 1,459,132,853.94 and 317,649,899.31 is: 476,504,140.02
Step by Step Solution
- Step 1: Write the proportion equation
972,695,439.99 : 1,459,132,853.94 = 317,649,899.31 : x - Step 2: Convert to fraction form
972,695,439.99/1,459,132,853.94 = 317,649,899.31/x - Step 3: Cross multiply
972,695,439.99x = 1,459,132,853.94 × 317,649,899.31 - Step 4: Simplify right side
972,695,439.99x = 463,493,404,133,953,984 - Step 5: Solve for x
x = 463,493,404,133,953,984/972,695,439.99 - Step 6: Final answer
x = 476,504,140.02
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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.