Finding the Fourth Proportional to 13,208,767.84, 19,817,871.20 and 8,031,909.92
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Solution
The fourth proportional to 13,208,767.84, 19,817,871.20 and 8,031,909.92 is: 12,050,734.65
Step by Step Solution
- Step 1: Write the proportion equation
13,208,767.84 : 19,817,871.20 = 8,031,909.92 : x - Step 2: Convert to fraction form
13,208,767.84/19,817,871.20 = 8,031,909.92/x - Step 3: Cross multiply
13,208,767.84x = 19,817,871.20 × 8,031,909.92 - Step 4: Simplify right side
13,208,767.84x = 159,175,356,284,562.28 - Step 5: Solve for x
x = 159,175,356,284,562.28/13,208,767.84 - Step 6: Final answer
x = 12,050,734.65
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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.