Finding the Fourth Proportional to 1,398,853,094.69, 1,929,720,375.14 and 833,939,919.97
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Solution
The fourth proportional to 1,398,853,094.69, 1,929,720,375.14 and 833,939,919.97 is: 1,150,421,628.48
Step by Step Solution
- Step 1: Write the proportion equation
1,398,853,094.69 : 1,929,720,375.14 = 833,939,919.97 : x - Step 2: Convert to fraction form
1,398,853,094.69/1,929,720,375.14 = 833,939,919.97/x - Step 3: Cross multiply
1,398,853,094.69x = 1,929,720,375.14 × 833,939,919.97 - Step 4: Simplify right side
1,398,853,094.69x = 1,609,270,855,199,735,808 - Step 5: Solve for x
x = 1,609,270,855,199,735,808/1,398,853,094.69 - Step 6: Final answer
x = 1,150,421,628.48
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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.