Finding the Fourth Proportional to 22,242,503.68, 30,678,804.99 and 20,412,870.41
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Solution
The fourth proportional to 22,242,503.68, 30,678,804.99 and 20,412,870.41 is: 28,155,214.89
Step by Step Solution
- Step 1: Write the proportion equation
22,242,503.68 : 30,678,804.99 = 20,412,870.41 : x - Step 2: Convert to fraction form
22,242,503.68/30,678,804.99 = 20,412,870.41/x - Step 3: Cross multiply
22,242,503.68x = 30,678,804.99 × 20,412,870.41 - Step 4: Simplify right side
22,242,503.68x = 626,242,470,671,228.38 - Step 5: Solve for x
x = 626,242,470,671,228.38/22,242,503.68 - Step 6: Final answer
x = 28,155,214.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.