Finding the Fourth Proportional to 490,241,746.09, 676,513,248.78 and 267,218,520.94
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Solution
The fourth proportional to 490,241,746.09, 676,513,248.78 and 267,218,520.94 is: 368,750,460.72
Step by Step Solution
- Step 1: Write the proportion equation
490,241,746.09 : 676,513,248.78 = 267,218,520.94 : x - Step 2: Convert to fraction form
490,241,746.09/676,513,248.78 = 267,218,520.94/x - Step 3: Cross multiply
490,241,746.09x = 676,513,248.78 × 267,218,520.94 - Step 4: Simplify right side
490,241,746.09x = 180,776,869,735,305,856 - Step 5: Solve for x
x = 180,776,869,735,305,856/490,241,746.09 - Step 6: Final answer
x = 368,750,460.72
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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.