Finding the Fourth Proportional to 262,324,985.74, 361,877,726.12 and 156,403,698.73
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Solution
The fourth proportional to 262,324,985.74, 361,877,726.12 and 156,403,698.73 is: 215,759,145.83
Step by Step Solution
- Step 1: Write the proportion equation
262,324,985.74 : 361,877,726.12 = 156,403,698.73 : x - Step 2: Convert to fraction form
262,324,985.74/361,877,726.12 = 156,403,698.73/x - Step 3: Cross multiply
262,324,985.74x = 361,877,726.12 × 156,403,698.73 - Step 4: Simplify right side
262,324,985.74x = 56,599,014,851,483,216 - Step 5: Solve for x
x = 56,599,014,851,483,216/262,324,985.74 - Step 6: Final answer
x = 215,759,145.83
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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.