Finding the Fourth Proportional to 19,417,876.80, 29,126,815.20 and 10,459,924.80
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Solution
The fourth proportional to 19,417,876.80, 29,126,815.20 and 10,459,924.80 is: 15,689,887.20
Step by Step Solution
- Step 1: Write the proportion equation
19,417,876.80 : 29,126,815.20 = 10,459,924.80 : x - Step 2: Convert to fraction form
19,417,876.80/29,126,815.20 = 10,459,924.80/x - Step 3: Cross multiply
19,417,876.80x = 29,126,815.20 × 10,459,924.80 - Step 4: Simplify right side
19,417,876.80x = 304,664,296,655,497 - Step 5: Solve for x
x = 304,664,296,655,497/19,417,876.80 - Step 6: Final answer
x = 15,689,887.20
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1.5x scale
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.