Finding the Fourth Proportional to 469,127,812.02, 647,406,268.74 and 257,432,790.99
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Solution
The fourth proportional to 469,127,812.02, 647,406,268.74 and 257,432,790.99 is: 355,262,677.67
Step by Step Solution
- Step 1: Write the proportion equation
469,127,812.02 : 647,406,268.74 = 257,432,790.99 : x - Step 2: Convert to fraction form
469,127,812.02/647,406,268.74 = 257,432,790.99/x - Step 3: Cross multiply
469,127,812.02x = 647,406,268.74 × 257,432,790.99 - Step 4: Simplify right side
469,127,812.02x = 166,663,602,664,873,024 - Step 5: Solve for x
x = 166,663,602,664,873,024/469,127,812.02 - Step 6: Final answer
x = 355,262,677.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.