Finding the Fourth Proportional to 905,819,342.40, 1,356,713,474.40 and 744,576,206.40
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Solution
The fourth proportional to 905,819,342.40, 1,356,713,474.40 and 744,576,206.40 is: 1,115,207,552.61
Step by Step Solution
- Step 1: Write the proportion equation
905,819,342.40 : 1,356,713,474.40 = 744,576,206.40 : x - Step 2: Convert to fraction form
905,819,342.40/1,356,713,474.40 = 744,576,206.40/x - Step 3: Cross multiply
905,819,342.40x = 1,356,713,474.40 × 744,576,206.40 - Step 4: Simplify right side
905,819,342.40x = 1,010,176,571,940,515,584 - Step 5: Solve for x
x = 1,010,176,571,940,515,584/905,819,342.40 - Step 6: Final answer
x = 1,115,207,552.61
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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.