Finding the Fourth Proportional to 129,249,072.99, 178,362,874.26 and 73,494,497.61
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Solution
The fourth proportional to 129,249,072.99, 178,362,874.26 and 73,494,497.61 is: 101,421,925.38
Step by Step Solution
- Step 1: Write the proportion equation
129,249,072.99 : 178,362,874.26 = 73,494,497.61 : x - Step 2: Convert to fraction form
129,249,072.99/178,362,874.26 = 73,494,497.61/x - Step 3: Cross multiply
129,249,072.99x = 178,362,874.26 × 73,494,497.61 - Step 4: Simplify right side
129,249,072.99x = 13,108,689,836,014,300 - Step 5: Solve for x
x = 13,108,689,836,014,300/129,249,072.99 - Step 6: Final answer
x = 101,421,925.38
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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.