Finding the Fourth Proportional to 7,661,089.99, 10,572,421.48 and 4,176,430.80
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Solution
The fourth proportional to 7,661,089.99, 10,572,421.48 and 4,176,430.80 is: 5,763,538.45
Step by Step Solution
- Step 1: Write the proportion equation
7,661,089.99 : 10,572,421.48 = 4,176,430.80 : x - Step 2: Convert to fraction form
7,661,089.99/10,572,421.48 = 4,176,430.80/x - Step 3: Cross multiply
7,661,089.99x = 10,572,421.48 × 4,176,430.80 - Step 4: Simplify right side
7,661,089.99x = 44,154,986,699,653.59 - Step 5: Solve for x
x = 44,154,986,699,653.59/7,661,089.99 - Step 6: Final answer
x = 5,763,538.45
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1.5x scale
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.