Finding the Fourth Proportional to 139,417,047,857.30, 209,221,097,408.08 and 48,658,464,144.97
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Solution
The fourth proportional to 139,417,047,857.30, 209,221,097,408.08 and 48,658,464,144.97 is: 73,021,035,971.31
Step by Step Solution
- Step 1: Write the proportion equation
139,417,047,857.30 : 209,221,097,408.08 = 48,658,464,144.97 : x - Step 2: Convert to fraction form
139,417,047,857.30/209,221,097,408.08 = 48,658,464,144.97/x - Step 3: Cross multiply
139,417,047,857.30x = 209,221,097,408.08 × 48,658,464,144.97 - Step 4: Simplify right side
139,417,047,857.30x = 10,180,377,266,601,288,794,112 - Step 5: Solve for x
x = 10,180,377,266,601,288,794,112/139,417,047,857.30 - Step 6: Final answer
x = 73,021,035,971.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.