Finding the Fourth Proportional to 248,286,992.64, 342,646,669.44 and 138,278,688
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Solution
The fourth proportional to 248,286,992.64, 342,646,669.44 and 138,278,688 is: 190,830,503.82
Step by Step Solution
- Step 1: Write the proportion equation
248,286,992.64 : 342,646,669.44 = 138,278,688 : x - Step 2: Convert to fraction form
248,286,992.64/342,646,669.44 = 138,278,688/x - Step 3: Cross multiply
248,286,992.64x = 342,646,669.44 × 138,278,688 - Step 4: Simplify right side
248,286,992.64x = 47,380,731,897,732,896 - Step 5: Solve for x
x = 47,380,731,897,732,896/248,286,992.64 - Step 6: Final answer
x = 190,830,503.82
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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.