Finding the Fourth Proportional to 1,570,310,170.00, 2,167,021,486.26 and 865,460,469.23
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Solution
The fourth proportional to 1,570,310,170.00, 2,167,021,486.26 and 865,460,469.23 is: 1,194,331,838.49
Step by Step Solution
- Step 1: Write the proportion equation
1,570,310,170.00 : 2,167,021,486.26 = 865,460,469.23 : x - Step 2: Convert to fraction form
1,570,310,170.00/2,167,021,486.26 = 865,460,469.23/x - Step 3: Cross multiply
1,570,310,170.00x = 2,167,021,486.26 × 865,460,469.23 - Step 4: Simplify right side
1,570,310,170.00x = 1,875,471,432,330,071,808 - Step 5: Solve for x
x = 1,875,471,432,330,071,808/1,570,310,170.00 - Step 6: Final answer
x = 1,194,331,838.49
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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.