Finding the Fourth Proportional to 1,048,607,511.40, 1,573,919,036.70 and 531,621,706.60
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Solution
The fourth proportional to 1,048,607,511.40, 1,573,919,036.70 and 531,621,706.60 is: 797,943,477.65
Step by Step Solution
- Step 1: Write the proportion equation
1,048,607,511.40 : 1,573,919,036.70 = 531,621,706.60 : x - Step 2: Convert to fraction form
1,048,607,511.40/1,573,919,036.70 = 531,621,706.60/x - Step 3: Cross multiply
1,048,607,511.40x = 1,573,919,036.70 × 531,621,706.60 - Step 4: Simplify right side
1,048,607,511.40x = 836,729,524,340,682,112 - Step 5: Solve for x
x = 836,729,524,340,682,112/1,048,607,511.40 - Step 6: Final answer
x = 797,943,477.65
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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.