Finding the Fourth Proportional to 69,979,671.50, 96,571,988.24 and 39,039,840.81
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Solution
The fourth proportional to 69,979,671.50, 96,571,988.24 and 39,039,840.81 is: 53,875,003.51
Step by Step Solution
- Step 1: Write the proportion equation
69,979,671.50 : 96,571,988.24 = 39,039,840.81 : x - Step 2: Convert to fraction form
69,979,671.50/96,571,988.24 = 39,039,840.81/x - Step 3: Cross multiply
69,979,671.50x = 96,571,988.24 × 39,039,840.81 - Step 4: Simplify right side
69,979,671.50x = 3,770,155,047,399,593 - Step 5: Solve for x
x = 3,770,155,047,399,593/69,979,671.50 - Step 6: Final answer
x = 53,875,003.51
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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.