Finding the Fourth Proportional to 640,935,249.93, 961,268,352.12 and 180,765,802.44
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Solution
The fourth proportional to 640,935,249.93, 961,268,352.12 and 180,765,802.44 is: 271,110,763.61
Step by Step Solution
- Step 1: Write the proportion equation
640,935,249.93 : 961,268,352.12 = 180,765,802.44 : x - Step 2: Convert to fraction form
640,935,249.93/961,268,352.12 = 180,765,802.44/x - Step 3: Cross multiply
640,935,249.93x = 961,268,352.12 × 180,765,802.44 - Step 4: Simplify right side
640,935,249.93x = 173,764,445,031,148,288 - Step 5: Solve for x
x = 173,764,445,031,148,288/640,935,249.93 - Step 6: Final answer
x = 271,110,763.61
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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.