Finding the Fourth Proportional to 27,720,443.68, 38,249,962.48 and 15,957,438.26
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Solution
The fourth proportional to 27,720,443.68, 38,249,962.48 and 15,957,438.26 is: 22,018,818.38
Step by Step Solution
- Step 1: Write the proportion equation
27,720,443.68 : 38,249,962.48 = 15,957,438.26 : x - Step 2: Convert to fraction form
27,720,443.68/38,249,962.48 = 15,957,438.26/x - Step 3: Cross multiply
27,720,443.68x = 38,249,962.48 × 15,957,438.26 - Step 4: Simplify right side
27,720,443.68x = 610,371,414,721,916.38 - Step 5: Solve for x
x = 610,371,414,721,916.38/27,720,443.68 - Step 6: Final answer
x = 22,018,818.38
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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.