Finding the Fourth Proportional to 489,943,337.80, 734,915,006.70 and 166,827,209.80
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Solution
The fourth proportional to 489,943,337.80, 734,915,006.70 and 166,827,209.80 is: 250,240,814.70
Step by Step Solution
- Step 1: Write the proportion equation
489,943,337.80 : 734,915,006.70 = 166,827,209.80 : x - Step 2: Convert to fraction form
489,943,337.80/734,915,006.70 = 166,827,209.80/x - Step 3: Cross multiply
489,943,337.80x = 734,915,006.70 × 166,827,209.80 - Step 4: Simplify right side
489,943,337.80x = 122,603,820,007,909,328 - Step 5: Solve for x
x = 122,603,820,007,909,328/489,943,337.80 - Step 6: Final answer
x = 250,240,814.70
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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.