Finding the Fourth Proportional to 38,742,325.54, 53,465,422.21 and 21,101,897.07
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Solution
The fourth proportional to 38,742,325.54, 53,465,422.21 and 21,101,897.07 is: 29,121,169.69
Step by Step Solution
- Step 1: Write the proportion equation
38,742,325.54 : 53,465,422.21 = 21,101,897.07 : x - Step 2: Convert to fraction form
38,742,325.54/53,465,422.21 = 21,101,897.07/x - Step 3: Cross multiply
38,742,325.54x = 53,465,422.21 × 21,101,897.07 - Step 4: Simplify right side
38,742,325.54x = 1,128,221,836,226,757.25 - Step 5: Solve for x
x = 1,128,221,836,226,757.25/38,742,325.54 - Step 6: Final answer
x = 29,121,169.69
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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.