Finding the Fourth Proportional to 10,420,421.04, 14,387,198.40 and 6,506,136.54
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Solution
The fourth proportional to 10,420,421.04, 14,387,198.40 and 6,506,136.54 is: 8,982,849.82
Step by Step Solution
- Step 1: Write the proportion equation
10,420,421.04 : 14,387,198.40 = 6,506,136.54 : x - Step 2: Convert to fraction form
10,420,421.04/14,387,198.40 = 6,506,136.54/x - Step 3: Cross multiply
10,420,421.04x = 14,387,198.40 × 6,506,136.54 - Step 4: Simplify right side
10,420,421.04x = 93,605,077,218,469.53 - Step 5: Solve for x
x = 93,605,077,218,469.53/10,420,421.04 - Step 6: Final answer
x = 8,982,849.82
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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.