Finding the Fourth Proportional to 207,753,622.90, 311,630,434.35 and 199,817,437.30
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Solution
The fourth proportional to 207,753,622.90, 311,630,434.35 and 199,817,437.30 is: 299,726,155.95
Step by Step Solution
- Step 1: Write the proportion equation
207,753,622.90 : 311,630,434.35 = 199,817,437.30 : x - Step 2: Convert to fraction form
207,753,622.90/311,630,434.35 = 199,817,437.30/x - Step 3: Cross multiply
207,753,622.90x = 311,630,434.35 × 199,817,437.30 - Step 4: Simplify right side
207,753,622.90x = 62,269,194,776,502,896 - Step 5: Solve for x
x = 62,269,194,776,502,896/207,753,622.90 - Step 6: Final answer
x = 299,726,155.95
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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.