Finding the Fourth Proportional to 42,328,309.76, 58,425,498.96 and 27,646,220.60
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Solution
The fourth proportional to 42,328,309.76, 58,425,498.96 and 27,646,220.60 is: 38,159,903.91
Step by Step Solution
- Step 1: Write the proportion equation
42,328,309.76 : 58,425,498.96 = 27,646,220.60 : x - Step 2: Convert to fraction form
42,328,309.76/58,425,498.96 = 27,646,220.60/x - Step 3: Cross multiply
42,328,309.76x = 58,425,498.96 × 27,646,220.60 - Step 4: Simplify right side
42,328,309.76x = 1,615,244,232,913,230.75 - Step 5: Solve for x
x = 1,615,244,232,913,230.75/42,328,309.76 - Step 6: Final answer
x = 38,159,903.91
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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.