Finding the Fourth Proportional to 70,125,378.90, 96,771,164.85 and 39,185,802.42
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Solution
The fourth proportional to 70,125,378.90, 96,771,164.85 and 39,185,802.42 is: 54,075,369.08
Step by Step Solution
- Step 1: Write the proportion equation
70,125,378.90 : 96,771,164.85 = 39,185,802.42 : x - Step 2: Convert to fraction form
70,125,378.90/96,771,164.85 = 39,185,802.42/x - Step 3: Cross multiply
70,125,378.90x = 96,771,164.85 × 39,185,802.42 - Step 4: Simplify right side
70,125,378.90x = 3,792,055,745,765,349 - Step 5: Solve for x
x = 3,792,055,745,765,349/70,125,378.90 - Step 6: Final answer
x = 54,075,369.08
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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.