Finding the Fourth Proportional to 489,343,021.80, 734,014,532.70 and 166,226,893.80
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Solution
The fourth proportional to 489,343,021.80, 734,014,532.70 and 166,226,893.80 is: 249,340,340.70
Step by Step Solution
- Step 1: Write the proportion equation
489,343,021.80 : 734,014,532.70 = 166,226,893.80 : x - Step 2: Convert to fraction form
489,343,021.80/734,014,532.70 = 166,226,893.80/x - Step 3: Cross multiply
489,343,021.80x = 734,014,532.70 × 166,226,893.80 - Step 4: Simplify right side
489,343,021.80x = 122,012,955,774,779,536 - Step 5: Solve for x
x = 122,012,955,774,779,536/489,343,021.80 - Step 6: Final answer
x = 249,340,340.70
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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.