Finding the Fourth Proportional to 42,120,348.42, 58,128,326.16 and 23,535,939.68
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Solution
The fourth proportional to 42,120,348.42, 58,128,326.16 and 23,535,939.68 is: 32,480,851.41
Step by Step Solution
- Step 1: Write the proportion equation
42,120,348.42 : 58,128,326.16 = 23,535,939.68 : x - Step 2: Convert to fraction form
42,120,348.42/58,128,326.16 = 23,535,939.68/x - Step 3: Cross multiply
42,120,348.42x = 58,128,326.16 × 23,535,939.68 - Step 4: Simplify right side
42,120,348.42x = 1,368,104,778,201,126 - Step 5: Solve for x
x = 1,368,104,778,201,126/42,120,348.42 - Step 6: Final answer
x = 32,480,851.41
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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.