Finding the Fourth Proportional to 910,701,132.26, 1,256,767,983.62 and 493,013,418.01
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Solution
The fourth proportional to 910,701,132.26, 1,256,767,983.62 and 493,013,418.01 is: 680,358,744.82
Step by Step Solution
- Step 1: Write the proportion equation
910,701,132.26 : 1,256,767,983.62 = 493,013,418.01 : x - Step 2: Convert to fraction form
910,701,132.26/1,256,767,983.62 = 493,013,418.01/x - Step 3: Cross multiply
910,701,132.26x = 1,256,767,983.62 × 493,013,418.01 - Step 4: Simplify right side
910,701,132.26x = 619,603,479,246,298,368 - Step 5: Solve for x
x = 619,603,479,246,298,368/910,701,132.26 - Step 6: Final answer
x = 680,358,744.82
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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.