Finding the Fourth Proportional to 375,719,739.55, 518,475,674.22 and 208,454,220.63
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Solution
The fourth proportional to 375,719,739.55, 518,475,674.22 and 208,454,220.63 is: 287,657,078.43
Step by Step Solution
- Step 1: Write the proportion equation
375,719,739.55 : 518,475,674.22 = 208,454,220.63 : x - Step 2: Convert to fraction form
375,719,739.55/518,475,674.22 = 208,454,220.63/x - Step 3: Cross multiply
375,719,739.55x = 518,475,674.22 × 208,454,220.63 - Step 4: Simplify right side
375,719,739.55x = 108,078,442,585,143,888 - Step 5: Solve for x
x = 108,078,442,585,143,888/375,719,739.55 - Step 6: Final answer
x = 287,657,078.43
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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.