Finding the Fourth Proportional to 7,064,988.96, 9,749,920.26 and 3,968,058.06
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Solution
The fourth proportional to 7,064,988.96, 9,749,920.26 and 3,968,058.06 is: 5,476,052.39
Step by Step Solution
- Step 1: Write the proportion equation
7,064,988.96 : 9,749,920.26 = 3,968,058.06 : x - Step 2: Convert to fraction form
7,064,988.96/9,749,920.26 = 3,968,058.06/x - Step 3: Cross multiply
7,064,988.96x = 9,749,920.26 × 3,968,058.06 - Step 4: Simplify right side
7,064,988.96x = 38,688,249,672,050.30 - Step 5: Solve for x
x = 38,688,249,672,050.30/7,064,988.96 - Step 6: Final answer
x = 5,476,052.39
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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.