Finding the Fourth Proportional to 39,163,987.84, 58,709,457.49 and 13,238,250.67
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Solution
The fourth proportional to 39,163,987.84, 58,709,457.49 and 13,238,250.67 is: 19,845,030.03
Step by Step Solution
- Step 1: Write the proportion equation
39,163,987.84 : 58,709,457.49 = 13,238,250.67 : x - Step 2: Convert to fraction form
39,163,987.84/58,709,457.49 = 13,238,250.67/x - Step 3: Cross multiply
39,163,987.84x = 58,709,457.49 × 13,238,250.67 - Step 4: Simplify right side
39,163,987.84x = 777,210,514,805,759.75 - Step 5: Solve for x
x = 777,210,514,805,759.75/39,163,987.84 - Step 6: Final answer
x = 19,845,030.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.