Finding the Fourth Proportional to 19,850,941.20, 29,776,411.80 and 19,011,133.20
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Solution
The fourth proportional to 19,850,941.20, 29,776,411.80 and 19,011,133.20 is: 28,516,699.80
Step by Step Solution
- Step 1: Write the proportion equation
19,850,941.20 : 29,776,411.80 = 19,011,133.20 : x - Step 2: Convert to fraction form
19,850,941.20/29,776,411.80 = 19,011,133.20/x - Step 3: Cross multiply
19,850,941.20x = 29,776,411.80 × 19,011,133.20 - Step 4: Simplify right side
19,850,941.20x = 566,083,330,947,851.75 - Step 5: Solve for x
x = 566,083,330,947,851.75/19,850,941.20 - Step 6: Final answer
x = 28,516,699.80
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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.