Finding the Fourth Proportional to 752,970,413.97, 1,039,124,405.13 and 418,457,035.47
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Solution
The fourth proportional to 752,970,413.97, 1,039,124,405.13 and 418,457,035.47 is: 577,484,732.45
Step by Step Solution
- Step 1: Write the proportion equation
752,970,413.97 : 1,039,124,405.13 = 418,457,035.47 : x - Step 2: Convert to fraction form
752,970,413.97/1,039,124,405.13 = 418,457,035.47/x - Step 3: Cross multiply
752,970,413.97x = 1,039,124,405.13 × 418,457,035.47 - Step 4: Simplify right side
752,970,413.97x = 434,828,918,055,227,072 - Step 5: Solve for x
x = 434,828,918,055,227,072/752,970,413.97 - Step 6: Final answer
x = 577,484,732.45
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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.