Finding the Fourth Proportional to 387,795,092.79, 535,322,355.70 and 260,709,476.18
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Solution
The fourth proportional to 387,795,092.79, 535,322,355.70 and 260,709,476.18 is: 359,890,090.25
Step by Step Solution
- Step 1: Write the proportion equation
387,795,092.79 : 535,322,355.70 = 260,709,476.18 : x - Step 2: Convert to fraction form
387,795,092.79/535,322,355.70 = 260,709,476.18/x - Step 3: Cross multiply
387,795,092.79x = 535,322,355.70 × 260,709,476.18 - Step 4: Simplify right side
387,795,092.79x = 139,563,610,941,990,640 - Step 5: Solve for x
x = 139,563,610,941,990,640/387,795,092.79 - Step 6: Final answer
x = 359,890,090.25
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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.