Finding the Fourth Proportional to 19,821,203.80, 29,731,805.70 and 14,782,355.80
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Solution
The fourth proportional to 19,821,203.80, 29,731,805.70 and 14,782,355.80 is: 22,173,533.70
Step by Step Solution
- Step 1: Write the proportion equation
19,821,203.80 : 29,731,805.70 = 14,782,355.80 : x - Step 2: Convert to fraction form
19,821,203.80/29,731,805.70 = 14,782,355.80/x - Step 3: Cross multiply
19,821,203.80x = 29,731,805.70 × 14,782,355.80 - Step 4: Simplify right side
19,821,203.80x = 439,506,130,433,868.06 - Step 5: Solve for x
x = 439,506,130,433,868.06/19,821,203.80 - Step 6: Final answer
x = 22,173,533.70
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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.