Finding the Fourth Proportional to 39,159,921.83, 53,972,286.98 and 28,683,681.17
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Solution
The fourth proportional to 39,159,921.83, 53,972,286.98 and 28,683,681.17 is: 39,533,374.92
Step by Step Solution
- Step 1: Write the proportion equation
39,159,921.83 : 53,972,286.98 = 28,683,681.17 : x - Step 2: Convert to fraction form
39,159,921.83/53,972,286.98 = 28,683,681.17/x - Step 3: Cross multiply
39,159,921.83x = 53,972,286.98 × 28,683,681.17 - Step 4: Simplify right side
39,159,921.83x = 1,548,123,871,336,782.25 - Step 5: Solve for x
x = 1,548,123,871,336,782.25/39,159,921.83 - Step 6: Final answer
x = 39,533,374.92
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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.