Finding the Fourth Proportional to 696,403,481.48, 961,036,772.12 and 383,130,969.41
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Solution
The fourth proportional to 696,403,481.48, 961,036,772.12 and 383,130,969.41 is: 528,720,719.99
Step by Step Solution
- Step 1: Write the proportion equation
696,403,481.48 : 961,036,772.12 = 383,130,969.41 : x - Step 2: Convert to fraction form
696,403,481.48/961,036,772.12 = 383,130,969.41/x - Step 3: Cross multiply
696,403,481.48x = 961,036,772.12 × 383,130,969.41 - Step 4: Simplify right side
696,403,481.48x = 368,202,950,134,272,000 - Step 5: Solve for x
x = 368,202,950,134,272,000/696,403,481.48 - Step 6: Final answer
x = 528,720,719.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.