Finding the Fourth Proportional to 39,603,647.60, 54,658,637.14 and 21,966,449.48
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Solution
The fourth proportional to 39,603,647.60, 54,658,637.14 and 21,966,449.48 is: 30,316,808.28
Step by Step Solution
- Step 1: Write the proportion equation
39,603,647.60 : 54,658,637.14 = 21,966,449.48 : x - Step 2: Convert to fraction form
39,603,647.60/54,658,637.14 = 21,966,449.48/x - Step 3: Cross multiply
39,603,647.60x = 54,658,637.14 × 21,966,449.48 - Step 4: Simplify right side
39,603,647.60x = 1,200,656,191,381,461.75 - Step 5: Solve for x
x = 1,200,656,191,381,461.75/39,603,647.60 - Step 6: Final answer
x = 30,316,808.28
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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.