Finding the Fourth Proportional to 38,668,681.92, 53,347,677.99 and 22,139,972.88
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Solution
The fourth proportional to 38,668,681.92, 53,347,677.99 and 22,139,972.88 is: 30,544,515.23
Step by Step Solution
- Step 1: Write the proportion equation
38,668,681.92 : 53,347,677.99 = 22,139,972.88 : x - Step 2: Convert to fraction form
38,668,681.92/53,347,677.99 = 22,139,972.88/x - Step 3: Cross multiply
38,668,681.92x = 53,347,677.99 × 22,139,972.88 - Step 4: Simplify right side
38,668,681.92x = 1,181,116,143,909,573 - Step 5: Solve for x
x = 1,181,116,143,909,573/38,668,681.92 - Step 6: Final answer
x = 30,544,515.23
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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.