Finding the Fourth Proportional to 256,243,404.95, 384,430,651.79 and 74,490,582.95
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Solution
The fourth proportional to 256,243,404.95, 384,430,651.79 and 74,490,582.95 is: 111,754,928.33
Step by Step Solution
- Step 1: Write the proportion equation
256,243,404.95 : 384,430,651.79 = 74,490,582.95 : x - Step 2: Convert to fraction form
256,243,404.95/384,430,651.79 = 74,490,582.95/x - Step 3: Cross multiply
256,243,404.95x = 384,430,651.79 × 74,490,582.95 - Step 4: Simplify right side
256,243,404.95x = 28,636,463,353,390,956 - Step 5: Solve for x
x = 28,636,463,353,390,956/256,243,404.95 - Step 6: Final answer
x = 111,754,928.33
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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.