Finding the Fourth Proportional to 7,365,602,762.40, 10,164,535,882.68 and 3,978,512,032.14
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Solution
The fourth proportional to 7,365,602,762.40, 10,164,535,882.68 and 3,978,512,032.14 is: 5,490,348,803.06
Step by Step Solution
- Step 1: Write the proportion equation
7,365,602,762.40 : 10,164,535,882.68 = 3,978,512,032.14 : x - Step 2: Convert to fraction form
7,365,602,762.40/10,164,535,882.68 = 3,978,512,032.14/x - Step 3: Cross multiply
7,365,602,762.40x = 10,164,535,882.68 × 3,978,512,032.14 - Step 4: Simplify right side
7,365,602,762.40x = 40,439,728,310,361,153,536 - Step 5: Solve for x
x = 40,439,728,310,361,153,536/7,365,602,762.40 - Step 6: Final answer
x = 5,490,348,803.06
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1.5x scale
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.