Finding the Fourth Proportional to 153,177,749.19, 211,368,993.08 and 86,195,537.91
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Solution
The fourth proportional to 153,177,749.19, 211,368,993.08 and 86,195,537.91 is: 118,940,669.59
Step by Step Solution
- Step 1: Write the proportion equation
153,177,749.19 : 211,368,993.08 = 86,195,537.91 : x - Step 2: Convert to fraction form
153,177,749.19/211,368,993.08 = 86,195,537.91/x - Step 3: Cross multiply
153,177,749.19x = 211,368,993.08 × 86,195,537.91 - Step 4: Simplify right side
153,177,749.19x = 18,219,064,055,594,688 - Step 5: Solve for x
x = 18,219,064,055,594,688/153,177,749.19 - Step 6: Final answer
x = 118,940,669.59
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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.