Finding the Fourth Proportional to 517,958,801.49, 714,792,765.14 and 283,024,678.62
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Solution
The fourth proportional to 517,958,801.49, 714,792,765.14 and 283,024,678.62 is: 390,579,312.58
Step by Step Solution
- Step 1: Write the proportion equation
517,958,801.49 : 714,792,765.14 = 283,024,678.62 : x - Step 2: Convert to fraction form
517,958,801.49/714,792,765.14 = 283,024,678.62/x - Step 3: Cross multiply
517,958,801.49x = 714,792,765.14 × 283,024,678.62 - Step 4: Simplify right side
517,958,801.49x = 202,303,992,632,234,528 - Step 5: Solve for x
x = 202,303,992,632,234,528/517,958,801.49 - Step 6: Final answer
x = 390,579,312.58
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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.