Finding the Fourth Proportional to 70,590,982.16, 97,417,921.12 and 39,230,352.98
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Solution
The fourth proportional to 70,590,982.16, 97,417,921.12 and 39,230,352.98 is: 54,139,201.85
Step by Step Solution
- Step 1: Write the proportion equation
70,590,982.16 : 97,417,921.12 = 39,230,352.98 : x - Step 2: Convert to fraction form
70,590,982.16/97,417,921.12 = 39,230,352.98/x - Step 3: Cross multiply
70,590,982.16x = 97,417,921.12 × 39,230,352.98 - Step 4: Simplify right side
70,590,982.16x = 3,821,739,432,115,397 - Step 5: Solve for x
x = 3,821,739,432,115,397/70,590,982.16 - Step 6: Final answer
x = 54,139,201.85
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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.