Finding the Fourth Proportional to 788,973,963.20, 1,183,460,944.80 and 329,242,068.80
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Solution
The fourth proportional to 788,973,963.20, 1,183,460,944.80 and 329,242,068.80 is: 493,863,103.20
Step by Step Solution
- Step 1: Write the proportion equation
788,973,963.20 : 1,183,460,944.80 = 329,242,068.80 : x - Step 2: Convert to fraction form
788,973,963.20/1,183,460,944.80 = 329,242,068.80/x - Step 3: Cross multiply
788,973,963.20x = 1,183,460,944.80 × 329,242,068.80 - Step 4: Simplify right side
788,973,963.20x = 389,645,129,809,954,624 - Step 5: Solve for x
x = 389,645,129,809,954,624/788,973,963.20 - Step 6: Final answer
x = 493,863,103.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.