Finding the Fourth Proportional to 775,947,339.68, 1,164,435,070.13 and 426,437,484.99
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Solution
The fourth proportional to 775,947,339.68, 1,164,435,070.13 and 426,437,484.99 is: 639,938,739.85
Step by Step Solution
- Step 1: Write the proportion equation
775,947,339.68 : 1,164,435,070.13 = 426,437,484.99 : x - Step 2: Convert to fraction form
775,947,339.68/1,164,435,070.13 = 426,437,484.99/x - Step 3: Cross multiply
775,947,339.68x = 1,164,435,070.13 × 426,437,484.99 - Step 4: Simplify right side
775,947,339.68x = 496,558,762,738,259,328 - Step 5: Solve for x
x = 496,558,762,738,259,328/775,947,339.68 - Step 6: Final answer
x = 639,938,739.85
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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.