Finding the Fourth Proportional to 619,129,217.80, 928,693,826.70 and 250,663,457.80
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Solution
The fourth proportional to 619,129,217.80, 928,693,826.70 and 250,663,457.80 is: 375,995,186.70
Step by Step Solution
- Step 1: Write the proportion equation
619,129,217.80 : 928,693,826.70 = 250,663,457.80 : x - Step 2: Convert to fraction form
619,129,217.80/928,693,826.70 = 250,663,457.80/x - Step 3: Cross multiply
619,129,217.80x = 928,693,826.70 × 250,663,457.80 - Step 4: Simplify right side
619,129,217.80x = 232,789,605,838,136,000 - Step 5: Solve for x
x = 232,789,605,838,136,000/619,129,217.80 - Step 6: Final answer
x = 375,995,186.70
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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.