Finding the Fourth Proportional to 28,381,808.70, 42,572,713.05 and 19,423,856.70
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Solution
The fourth proportional to 28,381,808.70, 42,572,713.05 and 19,423,856.70 is: 29,135,785.05
Step by Step Solution
- Step 1: Write the proportion equation
28,381,808.70 : 42,572,713.05 = 19,423,856.70 : x - Step 2: Convert to fraction form
28,381,808.70/42,572,713.05 = 19,423,856.70/x - Step 3: Cross multiply
28,381,808.70x = 42,572,713.05 × 19,423,856.70 - Step 4: Simplify right side
28,381,808.70x = 826,926,277,613,419.88 - Step 5: Solve for x
x = 826,926,277,613,419.88/28,381,808.70 - Step 6: Final answer
x = 29,135,785.05
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Similar ratio
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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.