Finding the Fourth Proportional to 657,441,287.92, 907,283,663.57 and 375,178,109.09
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Solution
The fourth proportional to 657,441,287.92, 907,283,663.57 and 375,178,109.09 is: 517,754,171.45
Step by Step Solution
- Step 1: Write the proportion equation
657,441,287.92 : 907,283,663.57 = 375,178,109.09 : x - Step 2: Convert to fraction form
657,441,287.92/907,283,663.57 = 375,178,109.09/x - Step 3: Cross multiply
657,441,287.92x = 907,283,663.57 × 375,178,109.09 - Step 4: Simplify right side
657,441,287.92x = 340,392,969,304,564,416 - Step 5: Solve for x
x = 340,392,969,304,564,416/657,441,287.92 - Step 6: Final answer
x = 517,754,171.45
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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.