Finding the Fourth Proportional to 111,177,779.99, 153,425,351.09 and 61,621,349.60
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Solution
The fourth proportional to 111,177,779.99, 153,425,351.09 and 61,621,349.60 is: 85,037,470.60
Step by Step Solution
- Step 1: Write the proportion equation
111,177,779.99 : 153,425,351.09 = 61,621,349.60 : x - Step 2: Convert to fraction form
111,177,779.99/153,425,351.09 = 61,621,349.60/x - Step 3: Cross multiply
111,177,779.99x = 153,425,351.09 × 61,621,349.60 - Step 4: Simplify right side
111,177,779.99x = 9,454,277,197,210,320 - Step 5: Solve for x
x = 9,454,277,197,210,320/111,177,779.99 - Step 6: Final answer
x = 85,037,470.60
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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.