Finding the Fourth Proportional to 19,553,840.40, 29,334,259.80 and 8,195,437.20
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Solution
The fourth proportional to 19,553,840.40, 29,334,259.80 and 8,195,437.20 is: 12,294,622.39
Step by Step Solution
- Step 1: Write the proportion equation
19,553,840.40 : 29,334,259.80 = 8,195,437.20 : x - Step 2: Convert to fraction form
19,553,840.40/29,334,259.80 = 8,195,437.20/x - Step 3: Cross multiply
19,553,840.40x = 29,334,259.80 × 8,195,437.20 - Step 4: Simplify right side
19,553,840.40x = 240,407,083,999,384.56 - Step 5: Solve for x
x = 240,407,083,999,384.56/19,553,840.40 - Step 6: Final answer
x = 12,294,622.39
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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.