Finding the Fourth Proportional to 75,418,024.99, 113,106,392.40 and 20,817,557.95
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Solution
The fourth proportional to 75,418,024.99, 113,106,392.40 and 20,817,557.95 is: 31,220,638.28
Step by Step Solution
- Step 1: Write the proportion equation
75,418,024.99 : 113,106,392.40 = 20,817,557.95 : x - Step 2: Convert to fraction form
75,418,024.99/113,106,392.40 = 20,817,557.95/x - Step 3: Cross multiply
75,418,024.99x = 113,106,392.40 × 20,817,557.95 - Step 4: Simplify right side
75,418,024.99x = 2,354,598,878,302,439.50 - Step 5: Solve for x
x = 2,354,598,878,302,439.50/75,418,024.99 - Step 6: Final answer
x = 31,220,638.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.