Finding the Fourth Proportional to 84,035,031.78, 115,968,110.79 and 46,865,347.08
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Solution
The fourth proportional to 84,035,031.78, 115,968,110.79 and 46,865,347.08 is: 64,674,048.99
Step by Step Solution
- Step 1: Write the proportion equation
84,035,031.78 : 115,968,110.79 = 46,865,347.08 : x - Step 2: Convert to fraction form
84,035,031.78/115,968,110.79 = 46,865,347.08/x - Step 3: Cross multiply
84,035,031.78x = 115,968,110.79 × 46,865,347.08 - Step 4: Simplify right side
84,035,031.78x = 5,434,885,762,385,243 - Step 5: Solve for x
x = 5,434,885,762,385,243/84,035,031.78 - Step 6: Final answer
x = 64,674,048.99
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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.