Finding the Fourth Proportional to 7,406,381.04, 10,220,394.74 and 4,142,565.20
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Solution
The fourth proportional to 7,406,381.04, 10,220,394.74 and 4,142,565.20 is: 5,716,510.03
Step by Step Solution
- Step 1: Write the proportion equation
7,406,381.04 : 10,220,394.74 = 4,142,565.20 : x - Step 2: Convert to fraction form
7,406,381.04/10,220,394.74 = 4,142,565.20/x - Step 3: Cross multiply
7,406,381.04x = 10,220,394.74 × 4,142,565.20 - Step 4: Simplify right side
7,406,381.04x = 42,338,651,508,372.24 - Step 5: Solve for x
x = 42,338,651,508,372.24/7,406,381.04 - Step 6: Final answer
x = 5,716,510.03
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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.