Finding the Fourth Proportional to 85,497,727.90, 128,246,591.85 and 24,915,430.30
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Solution
The fourth proportional to 85,497,727.90, 128,246,591.85 and 24,915,430.30 is: 37,373,145.45
Step by Step Solution
- Step 1: Write the proportion equation
85,497,727.90 : 128,246,591.85 = 24,915,430.30 : x - Step 2: Convert to fraction form
85,497,727.90/128,246,591.85 = 24,915,430.30/x - Step 3: Cross multiply
85,497,727.90x = 128,246,591.85 × 24,915,430.30 - Step 4: Simplify right side
85,497,727.90x = 3,195,319,020,451,223 - Step 5: Solve for x
x = 3,195,319,020,451,223/85,497,727.90 - Step 6: Final answer
x = 37,373,145.45
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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.