Finding the Fourth Proportional to 120,230,948.08, 165,918,768.42 and 65,226,790
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Solution
The fourth proportional to 120,230,948.08, 165,918,768.42 and 65,226,790 is: 90,013,002.79
Step by Step Solution
- Step 1: Write the proportion equation
120,230,948.08 : 165,918,768.42 = 65,226,790 : x - Step 2: Convert to fraction form
120,230,948.08/165,918,768.42 = 65,226,790/x - Step 3: Cross multiply
120,230,948.08x = 165,918,768.42 × 65,226,790 - Step 4: Simplify right side
120,230,948.08x = 10,822,348,664,789,970 - Step 5: Solve for x
x = 10,822,348,664,789,970/120,230,948.08 - Step 6: Final answer
x = 90,013,002.79
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1.5x scale
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.