Finding the Fourth Proportional to 810,044,419.74, 1,117,855,347.81 and 457,614,006.18
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Solution
The fourth proportional to 810,044,419.74, 1,117,855,347.81 and 457,614,006.18 is: 631,503,966.42
Step by Step Solution
- Step 1: Write the proportion equation
810,044,419.74 : 1,117,855,347.81 = 457,614,006.18 : x - Step 2: Convert to fraction form
810,044,419.74/1,117,855,347.81 = 457,614,006.18/x - Step 3: Cross multiply
810,044,419.74x = 1,117,855,347.81 × 457,614,006.18 - Step 4: Simplify right side
810,044,419.74x = 511,546,264,041,071,360 - Step 5: Solve for x
x = 511,546,264,041,071,360/810,044,419.74 - Step 6: Final answer
x = 631,503,966.42
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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.