Finding the Fourth Proportional to 87,753,602.70, 131,630,404.05 and 42,403,970.70
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Solution
The fourth proportional to 87,753,602.70, 131,630,404.05 and 42,403,970.70 is: 63,605,956.05
Step by Step Solution
- Step 1: Write the proportion equation
87,753,602.70 : 131,630,404.05 = 42,403,970.70 : x - Step 2: Convert to fraction form
87,753,602.70/131,630,404.05 = 42,403,970.70/x - Step 3: Cross multiply
87,753,602.70x = 131,630,404.05 × 42,403,970.70 - Step 4: Simplify right side
87,753,602.70x = 5,581,651,796,565,362 - Step 5: Solve for x
x = 5,581,651,796,565,362/87,753,602.70 - Step 6: Final answer
x = 63,605,956.05
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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.