Finding the Fourth Proportional to 750,168,638.48, 1,035,219,019.20 and 415,639,940.96
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Solution
The fourth proportional to 750,168,638.48, 1,035,219,019.20 and 415,639,940.96 is: 573,575,526.82
Step by Step Solution
- Step 1: Write the proportion equation
750,168,638.48 : 1,035,219,019.20 = 415,639,940.96 : x - Step 2: Convert to fraction form
750,168,638.48/1,035,219,019.20 = 415,639,940.96/x - Step 3: Cross multiply
750,168,638.48x = 1,035,219,019.20 × 415,639,940.96 - Step 4: Simplify right side
750,168,638.48x = 430,278,372,020,957,120 - Step 5: Solve for x
x = 430,278,372,020,957,120/750,168,638.48 - Step 6: Final answer
x = 573,575,526.82
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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.