Finding the Fourth Proportional to 42,590,143.30, 63,859,681.68 and 19,532,197.70
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Solution
The fourth proportional to 42,590,143.30, 63,859,681.68 and 19,532,197.70 is: 29,286,586.78
Step by Step Solution
- Step 1: Write the proportion equation
42,590,143.30 : 63,859,681.68 = 19,532,197.70 : x - Step 2: Convert to fraction form
42,590,143.30/63,859,681.68 = 19,532,197.70/x - Step 3: Cross multiply
42,590,143.30x = 63,859,681.68 × 19,532,197.70 - Step 4: Simplify right side
42,590,143.30x = 1,247,319,927,632,828 - Step 5: Solve for x
x = 1,247,319,927,632,828/42,590,143.30 - Step 6: Final answer
x = 29,286,586.78
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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.