Finding the Fourth Proportional to 998,124,624, 1,377,319,544.79 and 552,078,387.12
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Solution
The fourth proportional to 998,124,624, 1,377,319,544.79 and 552,078,387.12 is: 761,817,046.24
Step by Step Solution
- Step 1: Write the proportion equation
998,124,624 : 1,377,319,544.79 = 552,078,387.12 : x - Step 2: Convert to fraction form
998,124,624/1,377,319,544.79 = 552,078,387.12/x - Step 3: Cross multiply
998,124,624x = 1,377,319,544.79 × 552,078,387.12 - Step 4: Simplify right side
998,124,624x = 760,388,352,836,515,840 - Step 5: Solve for x
x = 760,388,352,836,515,840/998,124,624 - Step 6: Final answer
x = 761,817,046.24
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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.