Finding the Fourth Proportional to 1,616,171,048.76, 2,230,316,707.86 and 873,615,109.08
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Solution
The fourth proportional to 1,616,171,048.76, 2,230,316,707.86 and 873,615,109.08 is: 1,205,589,207.60
Step by Step Solution
- Step 1: Write the proportion equation
1,616,171,048.76 : 2,230,316,707.86 = 873,615,109.08 : x - Step 2: Convert to fraction form
1,616,171,048.76/2,230,316,707.86 = 873,615,109.08/x - Step 3: Cross multiply
1,616,171,048.76x = 2,230,316,707.86 × 873,615,109.08 - Step 4: Simplify right side
1,616,171,048.76x = 1,948,438,374,020,060,672 - Step 5: Solve for x
x = 1,948,438,374,020,060,672/1,616,171,048.76 - Step 6: Final answer
x = 1,205,589,207.60
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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.