Finding the Fourth Proportional to 55,228,203.84, 76,215,005.28 and 30,781,392.96
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Solution
The fourth proportional to 55,228,203.84, 76,215,005.28 and 30,781,392.96 is: 42,478,369.09
Step by Step Solution
- Step 1: Write the proportion equation
55,228,203.84 : 76,215,005.28 = 30,781,392.96 : x - Step 2: Convert to fraction form
55,228,203.84/76,215,005.28 = 30,781,392.96/x - Step 3: Cross multiply
55,228,203.84x = 76,215,005.28 × 30,781,392.96 - Step 4: Simplify right side
55,228,203.84x = 2,346,004,026,972,155 - Step 5: Solve for x
x = 2,346,004,026,972,155/55,228,203.84 - Step 6: Final answer
x = 42,478,369.09
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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.