Finding the Fourth Proportional to 817,847,623.60, 1,226,771,435.40 and 491,330,273.20
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Solution
The fourth proportional to 817,847,623.60, 1,226,771,435.40 and 491,330,273.20 is: 736,995,409.80
Step by Step Solution
- Step 1: Write the proportion equation
817,847,623.60 : 1,226,771,435.40 = 491,330,273.20 : x - Step 2: Convert to fraction form
817,847,623.60/1,226,771,435.40 = 491,330,273.20/x - Step 3: Cross multiply
817,847,623.60x = 1,226,771,435.40 × 491,330,273.20 - Step 4: Simplify right side
817,847,623.60x = 602,749,944,509,038,208 - Step 5: Solve for x
x = 602,749,944,509,038,208/817,847,623.60 - Step 6: Final answer
x = 736,995,409.80
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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.