Finding the Fourth Proportional to 540,486,200.76, 745,850,974.86 and 292,962,240.60
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Solution
The fourth proportional to 540,486,200.76, 745,850,974.86 and 292,962,240.60 is: 404,277,060.99
Step by Step Solution
- Step 1: Write the proportion equation
540,486,200.76 : 745,850,974.86 = 292,962,240.60 : x - Step 2: Convert to fraction form
540,486,200.76/745,850,974.86 = 292,962,240.60/x - Step 3: Cross multiply
540,486,200.76x = 745,850,974.86 × 292,962,240.60 - Step 4: Simplify right side
540,486,200.76x = 218,506,172,748,679,904 - Step 5: Solve for x
x = 218,506,172,748,679,904/540,486,200.76 - Step 6: Final answer
x = 404,277,060.99
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1.5x scale
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.