Finding the Fourth Proportional to 153,247,715.74, 211,478,896.66 and 83,633,594.82
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Solution
The fourth proportional to 153,247,715.74, 211,478,896.66 and 83,633,594.82 is: 115,412,750.34
Step by Step Solution
- Step 1: Write the proportion equation
153,247,715.74 : 211,478,896.66 = 83,633,594.82 : x - Step 2: Convert to fraction form
153,247,715.74/211,478,896.66 = 83,633,594.82/x - Step 3: Cross multiply
153,247,715.74x = 211,478,896.66 × 83,633,594.82 - Step 4: Simplify right side
153,247,715.74x = 17,686,740,356,243,090 - Step 5: Solve for x
x = 17,686,740,356,243,090/153,247,715.74 - Step 6: Final answer
x = 115,412,750.34
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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.