Finding the Fourth Proportional to 19,331,497.60, 28,997,246.40 and 6,724,009.60
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Solution
The fourth proportional to 19,331,497.60, 28,997,246.40 and 6,724,009.60 is: 10,086,014.40
Step by Step Solution
- Step 1: Write the proportion equation
19,331,497.60 : 28,997,246.40 = 6,724,009.60 : x - Step 2: Convert to fraction form
19,331,497.60/28,997,246.40 = 6,724,009.60/x - Step 3: Cross multiply
19,331,497.60x = 28,997,246.40 × 6,724,009.60 - Step 4: Simplify right side
19,331,497.60x = 194,977,763,167,165.41 - Step 5: Solve for x
x = 194,977,763,167,165.41/19,331,497.60 - Step 6: Final answer
x = 10,086,014.40
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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.