Finding the Fourth Proportional to 19,882,988.16, 27,438,681.60 and 11,062,567.68
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Solution
The fourth proportional to 19,882,988.16, 27,438,681.60 and 11,062,567.68 is: 15,266,431.27
Step by Step Solution
- Step 1: Write the proportion equation
19,882,988.16 : 27,438,681.60 = 11,062,567.68 : x - Step 2: Convert to fraction form
19,882,988.16/27,438,681.60 = 11,062,567.68/x - Step 3: Cross multiply
19,882,988.16x = 27,438,681.60 × 11,062,567.68 - Step 4: Simplify right side
19,882,988.16x = 303,542,272,249,970.69 - Step 5: Solve for x
x = 303,542,272,249,970.69/19,882,988.16 - Step 6: Final answer
x = 15,266,431.27
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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.