Finding the Fourth Proportional to 374,909,485.38, 517,335,702.57 and 207,641,364.72
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Solution
The fourth proportional to 374,909,485.38, 517,335,702.57 and 207,641,364.72 is: 286,523,268.92
Step by Step Solution
- Step 1: Write the proportion equation
374,909,485.38 : 517,335,702.57 = 207,641,364.72 : x - Step 2: Convert to fraction form
374,909,485.38/517,335,702.57 = 207,641,364.72/x - Step 3: Cross multiply
374,909,485.38x = 517,335,702.57 × 207,641,364.72 - Step 4: Simplify right side
374,909,485.38x = 107,420,291,300,014,816 - Step 5: Solve for x
x = 107,420,291,300,014,816/374,909,485.38 - Step 6: Final answer
x = 286,523,268.92
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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.