Finding the Fourth Proportional to 9,999,918.49, 15,000,763.76 and 2,811,514.95
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Solution
The fourth proportional to 9,999,918.49, 15,000,763.76 and 2,811,514.95 is: 4,217,521.53
Step by Step Solution
- Step 1: Write the proportion equation
9,999,918.49 : 15,000,763.76 = 2,811,514.95 : x - Step 2: Convert to fraction form
9,999,918.49/15,000,763.76 = 2,811,514.95/x - Step 3: Cross multiply
9,999,918.49x = 15,000,763.76 × 2,811,514.95 - Step 4: Simplify right side
9,999,918.49x = 42,174,871,572,658.21 - Step 5: Solve for x
x = 42,174,871,572,658.21/9,999,918.49 - Step 6: Final answer
x = 4,217,521.53
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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.