Finding the Fourth Proportional to 83,997,661.60, 125,996,492.40 and 71,668,230.40
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Solution
The fourth proportional to 83,997,661.60, 125,996,492.40 and 71,668,230.40 is: 107,502,345.60
Step by Step Solution
- Step 1: Write the proportion equation
83,997,661.60 : 125,996,492.40 = 71,668,230.40 : x - Step 2: Convert to fraction form
83,997,661.60/125,996,492.40 = 71,668,230.40/x - Step 3: Cross multiply
83,997,661.60x = 125,996,492.40 × 71,668,230.40 - Step 4: Simplify right side
83,997,661.60x = 9,029,945,646,915,050 - Step 5: Solve for x
x = 9,029,945,646,915,050/83,997,661.60 - Step 6: Final answer
x = 107,502,345.60
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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.