Finding the Fourth Proportional to 750,420,310.41, 1,035,580,126.64 and 415,914,428.84
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Solution
The fourth proportional to 750,420,310.41, 1,035,580,126.64 and 415,914,428.84 is: 573,961,966.26
Step by Step Solution
- Step 1: Write the proportion equation
750,420,310.41 : 1,035,580,126.64 = 415,914,428.84 : x - Step 2: Convert to fraction form
750,420,310.41/1,035,580,126.64 = 415,914,428.84/x - Step 3: Cross multiply
750,420,310.41x = 1,035,580,126.64 × 415,914,428.84 - Step 4: Simplify right side
750,420,310.41x = 430,712,716,882,272,960 - Step 5: Solve for x
x = 430,712,716,882,272,960/750,420,310.41 - Step 6: Final answer
x = 573,961,966.26
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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.