Finding the Fourth Proportional to 313,301,640.18, 432,367,931.79 and 187,874,256.87
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Solution
The fourth proportional to 313,301,640.18, 432,367,931.79 and 187,874,256.87 is: 259,273,471.51
Step by Step Solution
- Step 1: Write the proportion equation
313,301,640.18 : 432,367,931.79 = 187,874,256.87 : x - Step 2: Convert to fraction form
313,301,640.18/432,367,931.79 = 187,874,256.87/x - Step 3: Cross multiply
313,301,640.18x = 432,367,931.79 × 187,874,256.87 - Step 4: Simplify right side
313,301,640.18x = 81,230,803,879,465,104 - Step 5: Solve for x
x = 81,230,803,879,465,104/313,301,640.18 - Step 6: Final answer
x = 259,273,471.51
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.