Finding the Fourth Proportional to 68,031,798.50, 93,881,177.27 and 40,163,485.74
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Solution
The fourth proportional to 68,031,798.50, 93,881,177.27 and 40,163,485.74 is: 55,424,013.59
Step by Step Solution
- Step 1: Write the proportion equation
68,031,798.50 : 93,881,177.27 = 40,163,485.74 : x - Step 2: Convert to fraction form
68,031,798.50/93,881,177.27 = 40,163,485.74/x - Step 3: Cross multiply
68,031,798.50x = 93,881,177.27 × 40,163,485.74 - Step 4: Simplify right side
68,031,798.50x = 3,770,595,324,337,240 - Step 5: Solve for x
x = 3,770,595,324,337,240/68,031,798.50 - Step 6: Final answer
x = 55,424,013.59
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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.