Finding the Fourth Proportional to 259,722,090, 358,427,750.76 and 143,828,586
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Solution
The fourth proportional to 259,722,090, 358,427,750.76 and 143,828,586 is: 198,489,687.86
Step by Step Solution
- Step 1: Write the proportion equation
259,722,090 : 358,427,750.76 = 143,828,586 : x - Step 2: Convert to fraction form
259,722,090/358,427,750.76 = 143,828,586/x - Step 3: Cross multiply
259,722,090x = 358,427,750.76 × 143,828,586 - Step 4: Simplify right side
259,722,090x = 51,552,156,574,971,224 - Step 5: Solve for x
x = 51,552,156,574,971,224/259,722,090 - Step 6: Final answer
x = 198,489,687.86
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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.