Finding the Fourth Proportional to 100,128,430.00, 138,170,656.09 and 56,065,328.29
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Solution
The fourth proportional to 100,128,430.00, 138,170,656.09 and 56,065,328.29 is: 77,366,470.18
Step by Step Solution
- Step 1: Write the proportion equation
100,128,430.00 : 138,170,656.09 = 56,065,328.29 : x - Step 2: Convert to fraction form
100,128,430.00/138,170,656.09 = 56,065,328.29/x - Step 3: Cross multiply
100,128,430.00x = 138,170,656.09 × 56,065,328.29 - Step 4: Simplify right side
100,128,430.00x = 7,746,583,193,244,948 - Step 5: Solve for x
x = 7,746,583,193,244,948/100,128,430.00 - Step 6: Final answer
x = 77,366,470.18
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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.