Finding the Fourth Proportional to 717,725,665,916.84, 990,246,391,381.88 and 413,223,492,775.88
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Solution
The fourth proportional to 717,725,665,916.84, 990,246,391,381.88 and 413,223,492,775.88 is: 570,124,620,014.56
Step by Step Solution
- Step 1: Write the proportion equation
717,725,665,916.84 : 990,246,391,381.88 = 413,223,492,775.88 : x - Step 2: Convert to fraction form
717,725,665,916.84/990,246,391,381.88 = 413,223,492,775.88/x - Step 3: Cross multiply
717,725,665,916.84x = 990,246,391,381.88 × 413,223,492,775.88 - Step 4: Simplify right side
717,725,665,916.84x = 409,193,072,555,531,540,889,600 - Step 5: Solve for x
x = 409,193,072,555,531,540,889,600/717,725,665,916.84 - Step 6: Final answer
x = 570,124,620,014.56
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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.