Finding the Fourth Proportional to 90,366,195.10, 135,549,292.65 and 84,130,620.70
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Solution
The fourth proportional to 90,366,195.10, 135,549,292.65 and 84,130,620.70 is: 126,195,931.05
Step by Step Solution
- Step 1: Write the proportion equation
90,366,195.10 : 135,549,292.65 = 84,130,620.70 : x - Step 2: Convert to fraction form
90,366,195.10/135,549,292.65 = 84,130,620.70/x - Step 3: Cross multiply
90,366,195.10x = 135,549,292.65 × 84,130,620.70 - Step 4: Simplify right side
90,366,195.10x = 11,403,846,126,090,448 - Step 5: Solve for x
x = 11,403,846,126,090,448/90,366,195.10 - Step 6: Final answer
x = 126,195,931.05
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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.