Finding the Fourth Proportional to 45,648,348.88, 62,957,989.99 and 40,129,924.59
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Solution
The fourth proportional to 45,648,348.88, 62,957,989.99 and 40,129,924.59 is: 55,347,004.93
Step by Step Solution
- Step 1: Write the proportion equation
45,648,348.88 : 62,957,989.99 = 40,129,924.59 : x - Step 2: Convert to fraction form
45,648,348.88/62,957,989.99 = 40,129,924.59/x - Step 3: Cross multiply
45,648,348.88x = 62,957,989.99 × 40,129,924.59 - Step 4: Simplify right side
45,648,348.88x = 2,526,499,390,636,675 - Step 5: Solve for x
x = 2,526,499,390,636,675/45,648,348.88 - Step 6: Final answer
x = 55,347,004.93
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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.