Finding the Fourth Proportional to 931,631,641.80, 1,396,260,577.80 and 495,141,433.80
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Solution
The fourth proportional to 931,631,641.80, 1,396,260,577.80 and 495,141,433.80 is: 742,081,347.85
Step by Step Solution
- Step 1: Write the proportion equation
931,631,641.80 : 1,396,260,577.80 = 495,141,433.80 : x - Step 2: Convert to fraction form
931,631,641.80/1,396,260,577.80 = 495,141,433.80/x - Step 3: Cross multiply
931,631,641.80x = 1,396,260,577.80 × 495,141,433.80 - Step 4: Simplify right side
931,631,641.80x = 691,346,464,450,308,480 - Step 5: Solve for x
x = 691,346,464,450,308,480/931,631,641.80 - Step 6: Final answer
x = 742,081,347.85
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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.