Finding the Fourth Proportional to 453,195,909.30, 679,793,863.95 and 146,707,979.70
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Solution
The fourth proportional to 453,195,909.30, 679,793,863.95 and 146,707,979.70 is: 220,061,969.55
Step by Step Solution
- Step 1: Write the proportion equation
453,195,909.30 : 679,793,863.95 = 146,707,979.70 : x - Step 2: Convert to fraction form
453,195,909.30/679,793,863.95 = 146,707,979.70/x - Step 3: Cross multiply
453,195,909.30x = 679,793,863.95 × 146,707,979.70 - Step 4: Simplify right side
453,195,909.30x = 99,731,184,392,561,168 - Step 5: Solve for x
x = 99,731,184,392,561,168/453,195,909.30 - Step 6: Final answer
x = 220,061,969.55
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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.