Finding the Fourth Proportional to 70,125,372.40, 96,771,155.88 and 39,185,795.92
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Solution
The fourth proportional to 70,125,372.40, 96,771,155.88 and 39,185,795.92 is: 54,075,360.11
Step by Step Solution
- Step 1: Write the proportion equation
70,125,372.40 : 96,771,155.88 = 39,185,795.92 : x - Step 2: Convert to fraction form
70,125,372.40/96,771,155.88 = 39,185,795.92/x - Step 3: Cross multiply
70,125,372.40x = 96,771,155.88 × 39,185,795.92 - Step 4: Simplify right side
70,125,372.40x = 3,792,054,765,256,188 - Step 5: Solve for x
x = 3,792,054,765,256,188/70,125,372.40 - Step 6: Final answer
x = 54,075,360.11
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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.