Finding the Fourth Proportional to 7,113,643.02, 9,817,761.87 and 4,057,156.62
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Solution
The fourth proportional to 7,113,643.02, 9,817,761.87 and 4,057,156.62 is: 5,599,409.11
Step by Step Solution
- Step 1: Write the proportion equation
7,113,643.02 : 9,817,761.87 = 4,057,156.62 : x - Step 2: Convert to fraction form
7,113,643.02/9,817,761.87 = 4,057,156.62/x - Step 3: Cross multiply
7,113,643.02x = 9,817,761.87 × 4,057,156.62 - Step 4: Simplify right side
7,113,643.02x = 39,832,197,564,454.08 - Step 5: Solve for x
x = 39,832,197,564,454.08/7,113,643.02 - Step 6: Final answer
x = 5,599,409.11
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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.