Finding the Fourth Proportional to 42,124,220.10, 63,186,330.15 and 13,372,605.90
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Solution
The fourth proportional to 42,124,220.10, 63,186,330.15 and 13,372,605.90 is: 20,058,908.85
Step by Step Solution
- Step 1: Write the proportion equation
42,124,220.10 : 63,186,330.15 = 13,372,605.90 : x - Step 2: Convert to fraction form
42,124,220.10/63,186,330.15 = 13,372,605.90/x - Step 3: Cross multiply
42,124,220.10x = 63,186,330.15 × 13,372,605.90 - Step 4: Simplify right side
42,124,220.10x = 844,965,891,363,237.88 - Step 5: Solve for x
x = 844,965,891,363,237.88/42,124,220.10 - Step 6: Final answer
x = 20,058,908.85
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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.