Finding the Fourth Proportional to 40,873,985.52, 56,407,462.12 and 22,290,142.68
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Solution
The fourth proportional to 40,873,985.52, 56,407,462.12 and 22,290,142.68 is: 30,761,139.70
Step by Step Solution
- Step 1: Write the proportion equation
40,873,985.52 : 56,407,462.12 = 22,290,142.68 : x - Step 2: Convert to fraction form
40,873,985.52/56,407,462.12 = 22,290,142.68/x - Step 3: Cross multiply
40,873,985.52x = 56,407,462.12 × 22,290,142.68 - Step 4: Simplify right side
40,873,985.52x = 1,257,330,378,871,495.25 - Step 5: Solve for x
x = 1,257,330,378,871,495.25/40,873,985.52 - Step 6: Final answer
x = 30,761,139.70
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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.