Finding the Fourth Proportional to 139,968,177.80, 209,952,266.70 and 122,962,065.80
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Solution
The fourth proportional to 139,968,177.80, 209,952,266.70 and 122,962,065.80 is: 184,443,098.70
Step by Step Solution
- Step 1: Write the proportion equation
139,968,177.80 : 209,952,266.70 = 122,962,065.80 : x - Step 2: Convert to fraction form
139,968,177.80/209,952,266.70 = 122,962,065.80/x - Step 3: Cross multiply
139,968,177.80x = 209,952,266.70 × 122,962,065.80 - Step 4: Simplify right side
139,968,177.80x = 25,816,164,432,824,548 - Step 5: Solve for x
x = 25,816,164,432,824,548/139,968,177.80 - Step 6: Final answer
x = 184,443,098.70
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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.