Finding the Fourth Proportional to 57,129,968.95, 78,863,493.70 and 38,570,250.08
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Solution
The fourth proportional to 57,129,968.95, 78,863,493.70 and 38,570,250.08 is: 53,243,240.46
Step by Step Solution
- Step 1: Write the proportion equation
57,129,968.95 : 78,863,493.70 = 38,570,250.08 : x - Step 2: Convert to fraction form
57,129,968.95/78,863,493.70 = 38,570,250.08/x - Step 3: Cross multiply
57,129,968.95x = 78,863,493.70 × 38,570,250.08 - Step 4: Simplify right side
57,129,968.95x = 3,041,784,674,267,973 - Step 5: Solve for x
x = 3,041,784,674,267,973/57,129,968.95 - Step 6: Final answer
x = 53,243,240.46
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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.