Finding the Fourth Proportional to 539,321,943.84, 744,052,509.18 and 313,222,437.12
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Solution
The fourth proportional to 539,321,943.84, 744,052,509.18 and 313,222,437.12 is: 432,123,971.47
Step by Step Solution
- Step 1: Write the proportion equation
539,321,943.84 : 744,052,509.18 = 313,222,437.12 : x - Step 2: Convert to fraction form
539,321,943.84/744,052,509.18 = 313,222,437.12/x - Step 3: Cross multiply
539,321,943.84x = 744,052,509.18 × 313,222,437.12 - Step 4: Simplify right side
539,321,943.84x = 233,053,940,270,610,752 - Step 5: Solve for x
x = 233,053,940,270,610,752/539,321,943.84 - Step 6: Final answer
x = 432,123,971.47
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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.