Finding the Fourth Proportional to 14,652,598.68, 20,221,827.12 and 8,128,329.35
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Solution
The fourth proportional to 14,652,598.68, 20,221,827.12 and 8,128,329.35 is: 11,217,782.89
Step by Step Solution
- Step 1: Write the proportion equation
14,652,598.68 : 20,221,827.12 = 8,128,329.35 : x - Step 2: Convert to fraction form
14,652,598.68/20,221,827.12 = 8,128,329.35/x - Step 3: Cross multiply
14,652,598.68x = 20,221,827.12 × 8,128,329.35 - Step 4: Simplify right side
14,652,598.68x = 164,369,670,789,012.84 - Step 5: Solve for x
x = 164,369,670,789,012.84/14,652,598.68 - Step 6: Final answer
x = 11,217,782.89
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.