Finding the Fourth Proportional to 9,642,212.55, 13,306,637.10 and 5,291,454.54
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Solution
The fourth proportional to 9,642,212.55, 13,306,637.10 and 5,291,454.54 is: 7,302,417.88
Step by Step Solution
- Step 1: Write the proportion equation
9,642,212.55 : 13,306,637.10 = 5,291,454.54 : x - Step 2: Convert to fraction form
9,642,212.55/13,306,637.10 = 5,291,454.54/x - Step 3: Cross multiply
9,642,212.55x = 13,306,637.10 × 5,291,454.54 - Step 4: Simplify right side
9,642,212.55x = 70,411,465,294,927.44 - Step 5: Solve for x
x = 70,411,465,294,927.44/9,642,212.55 - Step 6: Final answer
x = 7,302,417.88
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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.