Finding the Fourth Proportional to 127,129,370.76, 175,427,091.36 and 74,210,671.08
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Solution
The fourth proportional to 127,129,370.76, 175,427,091.36 and 74,210,671.08 is: 102,404,047.92
Step by Step Solution
- Step 1: Write the proportion equation
127,129,370.76 : 175,427,091.36 = 74,210,671.08 : x - Step 2: Convert to fraction form
127,129,370.76/175,427,091.36 = 74,210,671.08/x - Step 3: Cross multiply
127,129,370.76x = 175,427,091.36 × 74,210,671.08 - Step 4: Simplify right side
127,129,370.76x = 13,018,562,175,438,070 - Step 5: Solve for x
x = 13,018,562,175,438,070/127,129,370.76 - Step 6: Final answer
x = 102,404,047.92
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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.