Finding the Fourth Proportional to 30,817,580.55, 42,528,949.40 and 17,586,493.99
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Solution
The fourth proportional to 30,817,580.55, 42,528,949.40 and 17,586,493.99 is: 24,269,754.46
Step by Step Solution
- Step 1: Write the proportion equation
30,817,580.55 : 42,528,949.40 = 17,586,493.99 : x - Step 2: Convert to fraction form
30,817,580.55/42,528,949.40 = 17,586,493.99/x - Step 3: Cross multiply
30,817,580.55x = 42,528,949.40 × 17,586,493.99 - Step 4: Simplify right side
30,817,580.55x = 747,935,113,024,114 - Step 5: Solve for x
x = 747,935,113,024,114/30,817,580.55 - Step 6: Final answer
x = 24,269,754.46
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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.