Finding the Fourth Proportional to 683,130,808.96, 942,783,707.57 and 415,144,792.49
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Solution
The fourth proportional to 683,130,808.96, 942,783,707.57 and 415,144,792.49 is: 572,938,215.50
Step by Step Solution
- Step 1: Write the proportion equation
683,130,808.96 : 942,783,707.57 = 415,144,792.49 : x - Step 2: Convert to fraction form
683,130,808.96/942,783,707.57 = 415,144,792.49/x - Step 3: Cross multiply
683,130,808.96x = 942,783,707.57 × 415,144,792.49 - Step 4: Simplify right side
683,130,808.96x = 391,391,746,635,310,912 - Step 5: Solve for x
x = 391,391,746,635,310,912/683,130,808.96 - Step 6: Final answer
x = 572,938,215.50
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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.