Finding the Fourth Proportional to 19,911,986.04, 29,871,128.34 and 7,132,207.80
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Solution
The fourth proportional to 19,911,986.04, 29,871,128.34 and 7,132,207.80 is: 10,699,439.73
Step by Step Solution
- Step 1: Write the proportion equation
19,911,986.04 : 29,871,128.34 = 7,132,207.80 : x - Step 2: Convert to fraction form
19,911,986.04/29,871,128.34 = 7,132,207.80/x - Step 3: Cross multiply
19,911,986.04x = 29,871,128.34 × 7,132,207.80 - Step 4: Simplify right side
19,911,986.04x = 213,047,094,541,349.03 - Step 5: Solve for x
x = 213,047,094,541,349.03/19,911,986.04 - Step 6: Final answer
x = 10,699,439.73
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.