Finding the Fourth Proportional to 39,533,787.51, 54,518,299.36 and 30,828,783.93
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Solution
The fourth proportional to 39,533,787.51, 54,518,299.36 and 30,828,783.93 is: 42,513,833.79
Step by Step Solution
- Step 1: Write the proportion equation
39,533,787.51 : 54,518,299.36 = 30,828,783.93 : x - Step 2: Convert to fraction form
39,533,787.51/54,518,299.36 = 30,828,783.93/x - Step 3: Cross multiply
39,533,787.51x = 54,518,299.36 × 30,828,783.93 - Step 4: Simplify right side
39,533,787.51x = 1,680,732,871,200,497.25 - Step 5: Solve for x
x = 1,680,732,871,200,497.25/39,533,787.51 - Step 6: Final answer
x = 42,513,833.79
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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.