Finding the Fourth Proportional to 98,965,753.74, 136,572,698.43 and 57,704,677.74
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Solution
The fourth proportional to 98,965,753.74, 136,572,698.43 and 57,704,677.74 is: 79,632,430.95
Step by Step Solution
- Step 1: Write the proportion equation
98,965,753.74 : 136,572,698.43 = 57,704,677.74 : x - Step 2: Convert to fraction form
98,965,753.74/136,572,698.43 = 57,704,677.74/x - Step 3: Cross multiply
98,965,753.74x = 136,572,698.43 × 57,704,677.74 - Step 4: Simplify right side
98,965,753.74x = 7,880,883,550,985,355 - Step 5: Solve for x
x = 7,880,883,550,985,355/98,965,753.74 - Step 6: Final answer
x = 79,632,430.95
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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.