Finding the Fourth Proportional to 278,689,002.36, 384,575,762.70 and 154,920,898.68
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Solution
The fourth proportional to 278,689,002.36, 384,575,762.70 and 154,920,898.68 is: 213,782,468.14
Step by Step Solution
- Step 1: Write the proportion equation
278,689,002.36 : 384,575,762.70 = 154,920,898.68 : x - Step 2: Convert to fraction form
278,689,002.36/384,575,762.70 = 154,920,898.68/x - Step 3: Cross multiply
278,689,002.36x = 384,575,762.70 × 154,920,898.68 - Step 4: Simplify right side
278,689,002.36x = 59,578,822,768,030,424 - Step 5: Solve for x
x = 59,578,822,768,030,424/278,689,002.36 - Step 6: Final answer
x = 213,782,468.14
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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.