Finding the Fourth Proportional to 30,525,476.12, 42,125,423.14 and 16,586,831.14
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Solution
The fourth proportional to 30,525,476.12, 42,125,423.14 and 16,586,831.14 is: 22,889,971.57
Step by Step Solution
- Step 1: Write the proportion equation
30,525,476.12 : 42,125,423.14 = 16,586,831.14 : x - Step 2: Convert to fraction form
30,525,476.12/42,125,423.14 = 16,586,831.14/x - Step 3: Cross multiply
30,525,476.12x = 42,125,423.14 × 16,586,831.14 - Step 4: Simplify right side
30,525,476.12x = 698,727,280,453,283 - Step 5: Solve for x
x = 698,727,280,453,283/30,525,476.12 - Step 6: Final answer
x = 22,889,971.57
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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.