Finding the Fourth Proportional to 153,656,746.95, 211,912,301.70 and 108,914,220.68
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Solution
The fourth proportional to 153,656,746.95, 211,912,301.70 and 108,914,220.68 is: 150,206,636.87
Step by Step Solution
- Step 1: Write the proportion equation
153,656,746.95 : 211,912,301.70 = 108,914,220.68 : x - Step 2: Convert to fraction form
153,656,746.95/211,912,301.70 = 108,914,220.68/x - Step 3: Cross multiply
153,656,746.95x = 211,912,301.70 × 108,914,220.68 - Step 4: Simplify right side
153,656,746.95x = 23,080,263,191,487,220 - Step 5: Solve for x
x = 23,080,263,191,487,220/153,656,746.95 - Step 6: Final answer
x = 150,206,636.87
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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.