Finding the Fourth Proportional to 10,366,286.90, 15,549,430.35 and 10,206,854.60
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Solution
The fourth proportional to 10,366,286.90, 15,549,430.35 and 10,206,854.60 is: 15,310,281.90
Step by Step Solution
- Step 1: Write the proportion equation
10,366,286.90 : 15,549,430.35 = 10,206,854.60 : x - Step 2: Convert to fraction form
10,366,286.90/15,549,430.35 = 10,206,854.60/x - Step 3: Cross multiply
10,366,286.90x = 15,549,430.35 × 10,206,854.60 - Step 4: Simplify right side
10,366,286.90x = 158,710,774,695,277.09 - Step 5: Solve for x
x = 158,710,774,695,277.09/10,366,286.90 - Step 6: Final answer
x = 15,310,281.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.