Finding the Fourth Proportional to 708,590,471.80, 1,062,885,707.70 and 625,366,811.20
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Solution
The fourth proportional to 708,590,471.80, 1,062,885,707.70 and 625,366,811.20 is: 938,050,216.80
Step by Step Solution
- Step 1: Write the proportion equation
708,590,471.80 : 1,062,885,707.70 = 625,366,811.20 : x - Step 2: Convert to fraction form
708,590,471.80/1,062,885,707.70 = 625,366,811.20/x - Step 3: Cross multiply
708,590,471.80x = 1,062,885,707.70 × 625,366,811.20 - Step 4: Simplify right side
708,590,471.80x = 664,693,445,694,404,352 - Step 5: Solve for x
x = 664,693,445,694,404,352/708,590,471.80 - Step 6: Final answer
x = 938,050,216.80
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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.