Finding the Fourth Proportional to 750,420,276.12, 1,035,580,079.21 and 415,914,394.39
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Solution
The fourth proportional to 750,420,276.12, 1,035,580,079.21 and 415,914,394.39 is: 573,961,918.67
Step by Step Solution
- Step 1: Write the proportion equation
750,420,276.12 : 1,035,580,079.21 = 415,914,394.39 : x - Step 2: Convert to fraction form
750,420,276.12/1,035,580,079.21 = 415,914,394.39/x - Step 3: Cross multiply
750,420,276.12x = 1,035,580,079.21 × 415,914,394.39 - Step 4: Simplify right side
750,420,276.12x = 430,712,661,486,975,360 - Step 5: Solve for x
x = 430,712,661,486,975,360/750,420,276.12 - Step 6: Final answer
x = 573,961,918.67
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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.