Finding the Fourth Proportional to 20,695,829.84, 28,561,128.84 and 11,528,478.80
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Solution
The fourth proportional to 20,695,829.84, 28,561,128.84 and 11,528,478.80 is: 15,909,792.98
Step by Step Solution
- Step 1: Write the proportion equation
20,695,829.84 : 28,561,128.84 = 11,528,478.80 : x - Step 2: Convert to fraction form
20,695,829.84/28,561,128.84 = 11,528,478.80/x - Step 3: Cross multiply
20,695,829.84x = 28,561,128.84 × 11,528,478.80 - Step 4: Simplify right side
20,695,829.84x = 329,266,368,336,008.62 - Step 5: Solve for x
x = 329,266,368,336,008.62/20,695,829.84 - Step 6: Final answer
x = 15,909,792.98
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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.