Finding the Fourth Proportional to 5,072,259.84, 6,999,718.73 and 2,780,371.32
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Solution
The fourth proportional to 5,072,259.84, 6,999,718.73 and 2,780,371.32 is: 3,836,912.50
Step by Step Solution
- Step 1: Write the proportion equation
5,072,259.84 : 6,999,718.73 = 2,780,371.32 : x - Step 2: Convert to fraction form
5,072,259.84/6,999,718.73 = 2,780,371.32/x - Step 3: Cross multiply
5,072,259.84x = 6,999,718.73 × 2,780,371.32 - Step 4: Simplify right side
5,072,259.84x = 19,461,817,191,056.96 - Step 5: Solve for x
x = 19,461,817,191,056.96/5,072,259.84 - Step 6: Final answer
x = 3,836,912.50
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1.5x scale
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.