Finding the Fourth Proportional to 153,155,742.36, 211,432,971.78 and 118,270,118.04
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Solution
The fourth proportional to 153,155,742.36, 211,432,971.78 and 118,270,118.04 is: 163,273,032.70
Step by Step Solution
- Step 1: Write the proportion equation
153,155,742.36 : 211,432,971.78 = 118,270,118.04 : x - Step 2: Convert to fraction form
153,155,742.36/211,432,971.78 = 118,270,118.04/x - Step 3: Cross multiply
153,155,742.36x = 211,432,971.78 × 118,270,118.04 - Step 4: Simplify right side
153,155,742.36x = 25,006,202,529,968,592 - Step 5: Solve for x
x = 25,006,202,529,968,592/153,155,742.36 - Step 6: Final answer
x = 163,273,032.70
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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.