Finding the Fourth Proportional to 10,368,862.70, 15,551,220.45 and 4,977,502.70
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Solution
The fourth proportional to 10,368,862.70, 15,551,220.45 and 4,977,502.70 is: 7,465,258.63
Step by Step Solution
- Step 1: Write the proportion equation
10,368,862.70 : 15,551,220.45 = 4,977,502.70 : x - Step 2: Convert to fraction form
10,368,862.70/15,551,220.45 = 4,977,502.70/x - Step 3: Cross multiply
10,368,862.70x = 15,551,220.45 × 4,977,502.70 - Step 4: Simplify right side
10,368,862.70x = 77,406,241,778,170.22 - Step 5: Solve for x
x = 77,406,241,778,170.22/10,368,862.70 - Step 6: Final answer
x = 7,465,258.63
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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.