Finding the Fourth Proportional to 13,057,528.77, 18,000,398.34 and 9,125,075.70
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Solution
The fourth proportional to 13,057,528.77, 18,000,398.34 and 9,125,075.70 is: 12,579,332.61
Step by Step Solution
- Step 1: Write the proportion equation
13,057,528.77 : 18,000,398.34 = 9,125,075.70 : x - Step 2: Convert to fraction form
13,057,528.77/18,000,398.34 = 9,125,075.70/x - Step 3: Cross multiply
13,057,528.77x = 18,000,398.34 × 9,125,075.70 - Step 4: Simplify right side
13,057,528.77x = 164,254,997,482,654.31 - Step 5: Solve for x
x = 164,254,997,482,654.31/13,057,528.77 - Step 6: Final answer
x = 12,579,332.61
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.