Finding the Fourth Proportional to 19,145,421.12, 28,718,381.52 and 6,365,925.84
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Solution
The fourth proportional to 19,145,421.12, 28,718,381.52 and 6,365,925.84 is: 9,548,971.83
Step by Step Solution
- Step 1: Write the proportion equation
19,145,421.12 : 28,718,381.52 = 6,365,925.84 : x - Step 2: Convert to fraction form
19,145,421.12/28,718,381.52 = 6,365,925.84/x - Step 3: Cross multiply
19,145,421.12x = 28,718,381.52 × 6,365,925.84 - Step 4: Simplify right side
19,145,421.12x = 182,819,087,001,146.47 - Step 5: Solve for x
x = 182,819,087,001,146.47/19,145,421.12 - Step 6: Final answer
x = 9,548,971.83
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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.