Finding the Fourth Proportional to 19,534,434.80, 29,312,149.80 and 8,176,031.60
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Solution
The fourth proportional to 19,534,434.80, 29,312,149.80 and 8,176,031.60 is: 12,268,441.11
Step by Step Solution
- Step 1: Write the proportion equation
19,534,434.80 : 29,312,149.80 = 8,176,031.60 : x - Step 2: Convert to fraction form
19,534,434.80/29,312,149.80 = 8,176,031.60/x - Step 3: Cross multiply
19,534,434.80x = 29,312,149.80 × 8,176,031.60 - Step 4: Simplify right side
19,534,434.80x = 239,657,063,028,733.69 - Step 5: Solve for x
x = 239,657,063,028,733.69/19,534,434.80 - Step 6: Final answer
x = 12,268,441.11
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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.